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Lazaridis I, Patterson N, Anthony D, Vyazov L, Fournier R, Ringbauer H, Olalde I, Khokhlov AA, Kitov EP, Shishlina NI, Ailincăi SC, Agapov DS, Agapov SA, Batieva E, Bauyrzhan B, Bereczki Z, Buzhilova A, Changmai P, Chizhevsky AA, Ciobanu I, Constantinescu M, Csányi M, Dani J, Dashkovskiy PK, Évinger S, Faifert A, Flegontov PN, Frînculeasa A, Frînculeasa MN, Hajdu T, Higham T, Jarosz P, Jelínek P, Khartanovich VI, Kirginekov EN, Kiss V, Kitova A, Kiyashko AV, Koledin J, Korolev A, Kosintsev P, Kulcsár G, Kuznetsov P, Magomedov R, Malikovich MA, Melis E, Moiseyev V, Molnár E, Monge J, Negrea O, Nikolaeva NA, Novak M, Ochir-Goryaeva M, Pálfi G, Popovici S, Rykun MP, Savenkova TM, Semibratov VP, Seregin NN, Šefčáková A, Serikovna MR, Shingiray I, Shirokov VN, Simalcsik A, Sirak K, Solodovnikov KN, Tárnoki J, Tishkin AA, Trifonov V, Vasilyev S, Akbari A, Brielle ES, Callan K, Candilio F, Cheronet O, Curtis E, Flegontova O, Iliev L, Kearns A, Keating D, Lawson AM, Mah M, Micco A, Michel M, Oppenheimer J, Qiu L, Noah Workman J, Zalzala F, Szécsényi-Nagy A, Palamara PF, Mallick S, Rohland N, Pinhasi R, Reich D. The Genetic Origin of the Indo-Europeans. bioRxiv 2024:2024.04.17.589597. [PMID: 38659893 PMCID: PMC11042377 DOI: 10.1101/2024.04.17.589597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The Yamnaya archaeological complex appeared around 3300BCE across the steppes north of the Black and Caspian Seas, and by 3000BCE reached its maximal extent from Hungary in the west to Kazakhstan in the east. To localize the ancestral and geographical origins of the Yamnaya among the diverse Eneolithic people that preceded them, we studied ancient DNA data from 428 individuals of which 299 are reported for the first time, demonstrating three previously unknown Eneolithic genetic clines. First, a "Caucasus-Lower Volga" (CLV) Cline suffused with Caucasus hunter-gatherer (CHG) ancestry extended between a Caucasus Neolithic southern end in Neolithic Armenia, and a steppe northern end in Berezhnovka in the Lower Volga. Bidirectional gene flow across the CLV cline created admixed intermediate populations in both the north Caucasus, such as the Maikop people, and on the steppe, such as those at the site of Remontnoye north of the Manych depression. CLV people also helped form two major riverine clines by admixing with distinct groups of European hunter-gatherers. A "Volga Cline" was formed as Lower Volga people mixed with upriver populations that had more Eastern hunter-gatherer (EHG) ancestry, creating genetically hyper-variable populations as at Khvalynsk in the Middle Volga. A "Dnipro Cline" was formed as CLV people bearing both Caucasus Neolithic and Lower Volga ancestry moved west and acquired Ukraine Neolithic hunter-gatherer (UNHG) ancestry to establish the population of the Serednii Stih culture from which the direct ancestors of the Yamnaya themselves were formed around 4000BCE. This population grew rapidly after 3750-3350BCE, precipitating the expansion of people of the Yamnaya culture who totally displaced previous groups on the Volga and further east, while admixing with more sedentary groups in the west. CLV cline people with Lower Volga ancestry contributed four fifths of the ancestry of the Yamnaya, but also, entering Anatolia from the east, contributed at least a tenth of the ancestry of Bronze Age Central Anatolians, where the Hittite language, related to the Indo-European languages spread by the Yamnaya, was spoken. We thus propose that the final unity of the speakers of the "Proto-Indo-Anatolian" ancestral language of both Anatolian and Indo-European languages can be traced to CLV cline people sometime between 4400-4000 BCE.
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Affiliation(s)
- Iosif Lazaridis
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Nick Patterson
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - David Anthony
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Hartwick College, Dept. of Anthropology, USA
| | - Leonid Vyazov
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Ostrava, Czechia
| | | | - Harald Ringbauer
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Archaeogenetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Iñigo Olalde
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- BIOMICs Research Group, Department of Zoology and Animal Cell Biology, University of the Basque Country UPV/EHU,Vitoria-Gasteiz, Spain
- Ikerbasque-Basque Foundation of Science, Bilbao, Spain
| | | | - Egor P. Kitov
- Center of Human Ecology, Institute of Ethnology and Anthropology, Russian Academy of Science, Moscow, Russia
| | | | | | - Danila S. Agapov
- Samara Regional Public Organization “Historical, ecological and cultural Association “Povolzje”
| | - Sergey A. Agapov
- Samara Regional Public Organization “Historical, ecological and cultural Association “Povolzje”
| | - Elena Batieva
- Azov History, Archaeology and Palaeontology Museum-Reserve, Azov, Russia
| | | | - Zsolt Bereczki
- Department of Biological Anthropology, Institute of Biology, University of Szeged, Szeged, Hungary
| | | | - Piya Changmai
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Ostrava, Czechia
| | - Andrey A. Chizhevsky
- Institute of Archeology named after A. Kh. Khalikov Tatarstan Academy of Sciences, Kazan, Russia
| | - Ion Ciobanu
- Orheiul Vechi Cultural-Natural Reserve, Institute of Bioarchaeological and Ethnocultural Research, Chișinău, Republic of Moldova
| | - Mihai Constantinescu
- Fr. I Rainer Institute of Anthropology, University of Bucharest, Bucharest, Romania
| | | | - János Dani
- Department of Archaeology, University of Szeged, Szeged, Hungary
- Déri Museum, 4026 Debrecen, Hungary
| | - Peter K. Dashkovskiy
- Department of Regional Studies of Russia, National and State-Confessional Relations, Altai State University, Barnaul, Russia
| | - Sándor Évinger
- Hungarian Natural History Museum, Department of Anthropology, Budapest, Hungary
| | - Anatoly Faifert
- Research Institute GAUK RO “Don Heritage”, Rostov-on-Don, Russia
| | - Pavel N. Flegontov
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Ostrava, Czechia
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czechia
| | - Alin Frînculeasa
- Prahova County Museum of History and Archaeology, Ploiești, Romania
| | - Mădălina N. Frînculeasa
- Department of Geography, Faculty of Humanities, University Valahia of Târgoviște, Târgovişte, Romania
| | - Tamás Hajdu
- Eötvös Loránd University (Department of Biological Anthropology, Institute of Biology, Eötvös Loránd University, Budapest, Hungary
| | - Tom Higham
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
- Human Evolution and Archaeological Sciences, University of Vienna, Vienna, Austria
| | - Paweł Jarosz
- Department of Mountain and Highland Archaeology, Institute Archaeology and Ethnology Polish Academy of Science, Kraków, Poland
| | - Pavol Jelínek
- Slovak National Museum-Archaeological Museum, Bratislava, Slovak Republic
| | - Valeri I. Khartanovich
- Peter the Great Museum of Anthropology and Ethnography, Department of Physical Anthropology, St. Petersburg, Russia
| | - Eduard N. Kirginekov
- State Autonomous Cultural Institution of the Republic of Khakassia “Khakassian National Museum of Local Lore named after L.R. Kyzlasova”, Republic of Khakassia, Abakan, Russia
| | - Viktória Kiss
- Institute of Archaeology, HUN-REN Research Centre for the Humanities, Budapest, Hungary
| | - Alexandera Kitova
- Centre for Egyptological Studies of the Russian Academy of Sciences, Russian Academy of Sciences, Moscow, Russia
| | - Alexeiy V. Kiyashko
- Department of Archaeology and History of the Ancient World of the Southern Federal University, Rostov-on-Don, Russia
| | | | - Arkady Korolev
- Samara State University of Social Sciences and Education, Samara, Russia
| | - Pavel Kosintsev
- Department of History of the Institute of Humanities, Ural Federal University, Ekaterinburg, Russia
- Institute of Plant and Animal Ecology, Urals Branch of the Russian Academy of Sciences, Yekaterinburg, Russia
| | - Gabriella Kulcsár
- Institute of Archaeology, HUN-REN Research Centre for the Humanities, Budapest, Hungary
| | - Pavel Kuznetsov
- Samara State University of Social Sciences and Education, Samara, Russia
| | - Rabadan Magomedov
- Institute of History, Archaeology and Ethnography, Dagestan branch of the Russian Academy of Science, Makhachkala. Dagestan, Russia
| | | | - Eszter Melis
- Institute of Archaeology, HUN-REN Research Centre for the Humanities, Budapest, Hungary
| | - Vyacheslav Moiseyev
- Peter the Great Museum of Anthropology and Ethnography, Department of Physical Anthropology, St. Petersburg, Russia
| | - Erika Molnár
- Department of Biological Anthropology, Institute of Biology, University of Szeged, Szeged, Hungary
| | - Janet Monge
- Independent Researcher, 106 Federal Street, Philadelphia PA, USA
| | - Octav Negrea
- Prahova County Museum of History and Archaeology, Ploiești, Romania
| | - Nadezhda A. Nikolaeva
- Department of General History, Historical and Literary Institute of the State University of Education, Ministry of Education Moscow, Moscow, Russia
| | - Mario Novak
- Centre for Applied Bioanthropology, Institute for Anthropological Research, Zagreb, Croatia
- Department of Archaeology and Heritage, Faculty of Humanities, University of Primorska, Koper, Slovenia
| | - Maria Ochir-Goryaeva
- Kalmyk Scientific Centre of the Russian Academy of Sciences, Elista, Republic of Kalmykia, Russia
| | - György Pálfi
- Department of Biological Anthropology, Institute of Biology, University of Szeged, Szeged, Hungary
| | - Sergiu Popovici
- National Agency for Archaeology, Chișinău, Republic of Moldova
| | | | | | - Vladimir P. Semibratov
- Department of Archaeology, Ethnography and Museology, Altai State University, Barnaul, Russia
| | - Nikolai N. Seregin
- Laboratory of Ancient and Medieval Archaeology of Eurasia, Altai State University, Barnaul, Russia
| | - Alena Šefčáková
- Slovak National Museum-Natural History Museum, Bratislava, Slovak Republic
| | | | - Irina Shingiray
- University of Oxford, Faculty of History, Oxford, United Kingdom
| | - Vladimir N. Shirokov
- Center for Stone Age Archeology, Institute of History and Archaeology, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | - Angela Simalcsik
- Orheiul Vechi Cultural-Natural Reserve, Institute of Bioarchaeological and Ethnocultural Research, Chișinău, Republic of Moldova
- Olga Necrasov Centre for Anthropological Research, Romanian Academy, Iași Branch, Iași, Romania
| | - Kendra Sirak
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Konstantin N. Solodovnikov
- Tyumen Scientific Center of the Siberian Branch of Russian Academy of Sciences, Institute of Problems of Northern Development, Tyumen, Russia
| | | | - Alexey A. Tishkin
- Department of Archaeology, Ethnography and Museology, Altai State University, Barnaul, Russia
| | - Viktov Trifonov
- Institute for the History of Material Culture, Russian Academy of Sciences, St Petersburg, Russia
| | - Sergey Vasilyev
- Russian Academy of Sciences, Institute of Ethnology and Anthropology, Moscow, Russia
| | - Ali Akbari
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Esther S. Brielle
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
| | - Kim Callan
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | | | - Olivia Cheronet
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
- Human Evolution and Archaeological Sciences, University of Vienna, Vienna, Austria
| | - Elizabeth Curtis
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Olga Flegontova
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Ostrava, Czechia
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czechia
| | - Lora Iliev
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Aisling Kearns
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Denise Keating
- School of Archaeology, University College Dublin, Ireland
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Matthew Mah
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Adam Micco
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Megan Michel
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Department of Archaeogenetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Jonas Oppenheimer
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Lijun Qiu
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - J. Noah Workman
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Fatma Zalzala
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Anna Szécsényi-Nagy
- Institute of Archaeogenomics, HUN-REN Research Centre for the Humanities, Budapest, Hungary
| | - Pier Francesco Palamara
- Department of Statistics, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Ron Pinhasi
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
- Human Evolution and Archaeological Sciences, University of Vienna, Vienna, Austria
| | - David Reich
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
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2
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Sirak K, Jansen Van Rensburg J, Brielle E, Chen B, Lazaridis I, Ringbauer H, Mah M, Mallick S, Micco A, Rohland N, Callan K, Curtis E, Kearns A, Lawson AM, Workman JN, Zalzala F, Ahmed Al-Orqbi AS, Ahmed Salem EM, Salem Hasan AM, Britton DC, Reich D. Medieval DNA from Soqotra points to Eurasian origins of an isolated population at the crossroads of Africa and Arabia. Nat Ecol Evol 2024; 8:817-829. [PMID: 38332026 PMCID: PMC11009077 DOI: 10.1038/s41559-024-02322-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 12/11/2023] [Indexed: 02/10/2024]
Abstract
Soqotra, an island situated at the mouth of the Gulf of Aden in the northwest Indian Ocean between Africa and Arabia, is home to ~60,000 people subsisting through fishing and semi-nomadic pastoralism who speak a Modern South Arabian language. Most of what is known about Soqotri history derives from writings of foreign travellers who provided little detail about local people, and the geographic origins and genetic affinities of early Soqotri people has not yet been investigated directly. Here we report genome-wide data from 39 individuals who lived between ~650 and 1750 CE at six locations across the island and document strong genetic connections between Soqotra and the similarly isolated Hadramawt region of coastal South Arabia that likely reflects a source for the peopling of Soqotra. Medieval Soqotri can be modelled as deriving ~86% of their ancestry from a population such as that found in the Hadramawt today, with the remaining ~14% best proxied by an Iranian-related source with up to 2% ancestry from the Indian sub-continent, possibly reflecting genetic exchanges that occurred along with archaeologically documented trade from these regions. In contrast to all other genotyped populations of the Arabian Peninsula, genome-level analysis of the medieval Soqotri is consistent with no sub-Saharan African admixture dating to the Holocene. The deep ancestry of people from medieval Soqotra and the Hadramawt is also unique in deriving less from early Holocene Levantine farmers and more from groups such as Late Pleistocene hunter-gatherers from the Levant (Natufians) than other mainland Arabians. This attests to migrations by early farmers having less impact in southernmost Arabia and Soqotra and provides compelling evidence that there has not been complete population replacement between the Pleistocene and Holocene throughout the Arabian Peninsula. Medieval Soqotra harboured a small population that showed qualitatively different marriage practices from modern Soqotri, with first-cousin unions occurring significantly less frequently than today.
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Affiliation(s)
- Kendra Sirak
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
| | | | - Esther Brielle
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Bowen Chen
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
| | - Iosif Lazaridis
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Harald Ringbauer
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Matthew Mah
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Swapan Mallick
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Adam Micco
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Kimberly Callan
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Elizabeth Curtis
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Aisling Kearns
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - J Noah Workman
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Fatma Zalzala
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | | | | | | | | | - David Reich
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
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3
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Olalde I, Carrión P, Mikić I, Rohland N, Mallick S, Lazaridis I, Mah M, Korać M, Golubović S, Petković S, Miladinović-Radmilović N, Vulović D, Alihodžić T, Ash A, Baeta M, Bartík J, Bedić Ž, Bilić M, Bonsall C, Bunčić M, Bužanić D, Carić M, Čataj L, Cvetko M, Drnić I, Dugonjić A, Đukić A, Đukić K, Farkaš Z, Jelínek P, Jovanovic M, Kaić I, Kalafatić H, Krmpotić M, Krznar S, Leleković T, M de Pancorbo M, Matijević V, Milošević Zakić B, Osterholtz AJ, Paige JM, Tresić Pavičić D, Premužić Z, Rajić Šikanjić P, Rapan Papeša A, Paraman L, Sanader M, Radovanović I, Roksandic M, Šefčáková A, Stefanović S, Teschler-Nicola M, Tončinić D, Zagorc B, Callan K, Candilio F, Cheronet O, Fernandes D, Kearns A, Lawson AM, Mandl K, Wagner A, Zalzala F, Zettl A, Tomanović Ž, Keckarević D, Novak M, Harper K, McCormick M, Pinhasi R, Grbić M, Lalueza-Fox C, Reich D. A genetic history of the Balkans from Roman frontier to Slavic migrations. Cell 2023; 186:5472-5485.e9. [PMID: 38065079 PMCID: PMC10752003 DOI: 10.1016/j.cell.2023.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/22/2023] [Accepted: 10/18/2023] [Indexed: 12/18/2023]
Abstract
The rise and fall of the Roman Empire was a socio-political process with enormous ramifications for human history. The Middle Danube was a crucial frontier and a crossroads for population and cultural movement. Here, we present genome-wide data from 136 Balkan individuals dated to the 1st millennium CE. Despite extensive militarization and cultural influence, we find little ancestry contribution from peoples of Italic descent. However, we trace a large-scale influx of people of Anatolian ancestry during the Imperial period. Between ∼250 and 550 CE, we detect migrants with ancestry from Central/Northern Europe and the Steppe, confirming that "barbarian" migrations were propelled by ethnically diverse confederations. Following the end of Roman control, we detect the large-scale arrival of individuals who were genetically similar to modern Eastern European Slavic-speaking populations, who contributed 30%-60% of the ancestry of Balkan people, representing one of the largest permanent demographic changes anywhere in Europe during the Migration Period.
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Affiliation(s)
- Iñigo Olalde
- BIOMICs Research Group, Department of Zoology and Animal Cell Biology, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain; Ikerbasque-Basque Foundation of Science, Bilbao, Spain; Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA; Institute of Evolutionary Biology, CSIC-Universitat Pompeu Fabra, Barcelona, Spain.
| | - Pablo Carrión
- Institute of Evolutionary Biology, CSIC-Universitat Pompeu Fabra, Barcelona, Spain
| | | | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, MA, USA; Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Iosif Lazaridis
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA; Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Matthew Mah
- Department of Genetics, Harvard Medical School, Boston, MA, USA; Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | | | | | | | | | | | | | - Abigail Ash
- Department of Archaeology, Durham University, Durham, UK
| | - Miriam Baeta
- BIOMICs Research Group, Department of Zoology and Animal Cell Biology, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Juraj Bartík
- Slovak National Museum-Archaeological Museum, Bratislava, Slovak Republic
| | - Željka Bedić
- Centre for Applied Bioanthropology, Institute for Anthropological Research, Zagreb, Croatia
| | | | - Clive Bonsall
- School of History, Classics and Archaeology, University of Edinburgh, Edinburgh, UK
| | - Maja Bunčić
- Archaeological Museum in Zagreb, Zagreb, Croatia
| | - Domagoj Bužanić
- Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia
| | - Mario Carić
- Centre for Applied Bioanthropology, Institute for Anthropological Research, Zagreb, Croatia
| | - Lea Čataj
- Division for Archaeological Heritage, Croatian Conservation Institute, Zagreb, Croatia
| | - Mirna Cvetko
- Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia
| | - Ivan Drnić
- Archaeological Museum in Zagreb, Zagreb, Croatia
| | | | - Ana Đukić
- Archaeological Museum in Zagreb, Zagreb, Croatia
| | - Ksenija Đukić
- Center of Bone Biology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Zdeněk Farkaš
- Slovak National Museum-Archaeological Museum, Bratislava, Slovak Republic
| | - Pavol Jelínek
- Slovak National Museum-Archaeological Museum, Bratislava, Slovak Republic
| | | | - Iva Kaić
- Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia
| | | | - Marijana Krmpotić
- Department for Archaeology, Croatian Conservation Institute, Zagreb, Croatia
| | | | - Tino Leleković
- Archaeology Division, Croatian Academy of Sciences and Arts, Zagreb, Croatia
| | - Marian M de Pancorbo
- BIOMICs Research Group, Department of Zoology and Animal Cell Biology, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Vinka Matijević
- Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia
| | | | - Anna J Osterholtz
- Department of Anthropology and Middle Eastern Cultures, Mississippi State University, Starkville, MS, USA
| | - Julianne M Paige
- Department of Anthropology, University of Nevada, Las Vegas, NV, USA
| | | | | | - Petra Rajić Šikanjić
- Centre for Applied Bioanthropology, Institute for Anthropological Research, Zagreb, Croatia
| | | | | | - Mirjana Sanader
- Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia
| | | | - Mirjana Roksandic
- Department of Anthropology, University of Winnipeg, Winnipeg, MB, Canada
| | - Alena Šefčáková
- Department of Anthropology, Slovak National Museum-Natural History Museum, Bratislava, Slovak Republic
| | - Sofia Stefanović
- Laboratory for Bioarchaeology, Faculty of Philosophy, University of Belgrade, Belgrade, Serbia
| | - Maria Teschler-Nicola
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria; Department of Anthropology, Natural History Museum Vienna, Vienna, Austria
| | - Domagoj Tončinić
- Faculty of Humanities and Social Sciences, University of Zagreb, Zagreb, Croatia
| | - Brina Zagorc
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Kim Callan
- Department of Genetics, Harvard Medical School, Boston, MA, USA; Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | | | - Olivia Cheronet
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Daniel Fernandes
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria; Research Centre for Anthropology and Health (CIAS), Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Aisling Kearns
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, MA, USA; Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Kirsten Mandl
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Anna Wagner
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Fatma Zalzala
- Department of Genetics, Harvard Medical School, Boston, MA, USA; Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Anna Zettl
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Željko Tomanović
- Faculty of Biology, University of Belgrade, Belgrade, Serbia; Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | | | - Mario Novak
- Centre for Applied Bioanthropology, Institute for Anthropological Research, Zagreb, Croatia
| | - Kyle Harper
- Department of Classics and Letters, University of Oklahoma, Norman, OK, USA; Santa Fe Institute, Santa Fe, NM, USA
| | - Michael McCormick
- Department of History, Harvard University, Cambridge, MA, USA; Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, Harvard University, Cambridge, MA, USA
| | - Ron Pinhasi
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria; Human Evolution and Archaeological Sciences, University of Vienna, Vienna, Austria
| | - Miodrag Grbić
- Faculty of Biology, University of Belgrade, Belgrade, Serbia; Department of Biology, University of Western Ontario, London, ON, Canada; Department of Agriculture and Food, Universidad de La Rioja, Logroño, Spain
| | - Carles Lalueza-Fox
- Institute of Evolutionary Biology, CSIC-Universitat Pompeu Fabra, Barcelona, Spain; Museu de Ciències Naturals de Barcelona, Barcelona, Spain.
| | - David Reich
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA; Department of Genetics, Harvard Medical School, Boston, MA, USA; Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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4
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Nakatsuka N, Holguin B, Sedig J, Langenwalter PE, Carpenter J, Culleton BJ, García-Moreno C, Harper TK, Martin D, Martínez-Ramírez J, Porcayo-Michelini A, Tiesler V, Villapando-Canchola ME, Valdes Herrera A, Callan K, Curtis E, Kearns A, Iliev L, Lawson AM, Mah M, Mallick S, Micco A, Michel M, Workman JN, Oppenheimer J, Qiu L, Zalzala F, Rohland N, Punzo Diaz JL, Johnson JR, Reich D. Genetic continuity and change among the Indigenous peoples of California. Nature 2023; 624:122-129. [PMID: 37993721 PMCID: PMC10872549 DOI: 10.1038/s41586-023-06771-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/20/2023] [Indexed: 11/24/2023]
Abstract
Before the colonial period, California harboured more language variation than all of Europe, and linguistic and archaeological analyses have led to many hypotheses to explain this diversity1. We report genome-wide data from 79 ancient individuals from California and 40 ancient individuals from Northern Mexico dating to 7,400-200 years before present (BP). Our analyses document long-term genetic continuity between people living on the Northern Channel Islands of California and the adjacent Santa Barbara mainland coast from 7,400 years BP to modern Chumash groups represented by individuals who lived around 200 years BP. The distinctive genetic lineages that characterize present-day and ancient people from Northwest Mexico increased in frequency in Southern and Central California by 5,200 years BP, providing evidence for northward migrations that are candidates for spreading Uto-Aztecan languages before the dispersal of maize agriculture from Mexico2-4. Individuals from Baja California share more alleles with the earliest individual from Central California in the dataset than with later individuals from Central California, potentially reflecting an earlier linguistic substrate, whose impact on local ancestry was diluted by later migrations from inland regions1,5. After 1,600 years BP, ancient individuals from the Channel Islands lived in communities with effective sizes similar to those in pre-agricultural Caribbean and Patagonia, and smaller than those on the California mainland and in sampled regions of Mexico.
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Affiliation(s)
- Nathan Nakatsuka
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
- Harvard-MIT Division of Health Sciences and Technology, Boston, MA, USA.
| | - Brian Holguin
- Department of Anthropology, University of California at Santa Barbara, Santa Barbara, CA, USA
| | - Jakob Sedig
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
| | | | - John Carpenter
- Instituto Nacional de Antropología e Historia, Sonora, Hermosillo, México
| | - Brendan J Culleton
- Institute of Energy and the Environment, The Pennsylvania State University, University Park, PA, USA
| | | | - Thomas K Harper
- Institute of Energy and the Environment, The Pennsylvania State University, University Park, PA, USA
| | - Debra Martin
- Department of Anthropology, University of Nevada, Las Vegas, NV, USA
| | | | | | - Vera Tiesler
- Universidad Autónoma de Yucatán, Facultad de Ciencias Antropológicas, Mérida, México
| | | | | | - Kim Callan
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Elizabeth Curtis
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Aisling Kearns
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Lora Iliev
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Matthew Mah
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Adam Micco
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Megan Michel
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - J Noah Workman
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Jonas Oppenheimer
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Lijun Qiu
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Fatma Zalzala
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | | | - John R Johnson
- Santa Barbara Museum of Natural History, Santa Barbara, CA, USA.
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA.
- Broad Institute of Harvard and MIT, Cambridge, MA, USA.
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5
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Becker K, Schaumburg F, Kearns A, Larsen AR, Lindsay JA, Skov RL, Westh H. Implications of identifying the recently defined members of the Staphylococcus aureus complex S. argenteus and S. schweitzeri: a position paper of members of the ESCMID Study Group for Staphylococci and Staphylococcal Diseases (ESGS). Clin Microbiol Infect 2019; 25:1064-1070. [PMID: 30872103 DOI: 10.1016/j.cmi.2019.02.028] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 02/18/2019] [Accepted: 02/21/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Staphylococcus argenteus and Staphylococcus schweitzeri, previously known as divergent Staphylococcus aureus clonal lineages, have been recently established as novel, difficult-to-delimit, coagulase-positive species within the S. aureus complex. Methicillin-resistant strains of S. argenteus are known from Australia and the UK. Knowledge of their epidemiology, medical significance and transmission risk is limited and partly contradictory, hampering definitive recommendations. There is mounting evidence that the pathogenicity of S. argenteus is similar to that of 'classical' S. aureus, while as yet no S. schweitzeri infections have been reported. AIM To provide decision support on whether and how to distinguish and report both species. SOURCES PubMed, searched for S. argenteus and S. schweitzeri. CONTENT This position paper reviews the main characteristics of both species and draws conclusions for microbiological diagnostics and surveillance as well as infection prevention and control measures. IMPLICATIONS We propose not distinguishing within the S. aureus complex for routine reporting purposes until there is evidence that pathogenicity or clinical outcome differ markedly between the different species. Primarily for research purposes, suitably equipped laboratories are encouraged to differentiate between S. argenteus and S. schweitzeri. Caution is urged if these novel species are explicitly reported. In such cases, a specific comment should be added (i.e. 'member of the S.aureus complex') to prevent confusion with less- or non-pathogenic staphylococci. Prioritizing aspects of patient safety, methicillin-resistant isolates should be handled as recommended for methicillin-resistant Staphylococcus aureus (MRSA). In these cases, the clinician responsible should be directly contacted and informed by the diagnosing microbiological laboratory, as they would be for MRSA. Research is warranted to clarify the epidemiology, clinical impact and implications for infection control of such isolates.
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Affiliation(s)
- K Becker
- Institute of Medical Microbiology, University Hospital Münster, Münster, Germany.
| | - F Schaumburg
- Institute of Medical Microbiology, University Hospital Münster, Münster, Germany
| | - A Kearns
- HCAI and AMR Division, National Infection Service, Public Health England, London, UK
| | - A R Larsen
- National Center for Antimicrobial and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - J A Lindsay
- Institute of Infection and Immunity, St George's, University of London, UK
| | - R L Skov
- Infectious Disease Preparedness, Statens Serum Institut, Copenhagen, Denmark
| | - H Westh
- Department of Clinical Microbiology, Hvidovre Hospital, University of Copenhagen, Denmark
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6
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Utsi L, Pichon B, Arunachalam N, Kerrane A, Batten E, Denton M, Townsend R, Agwuh KN, Hughes GJ, Kearns A. Circulation of a community healthcare-associated multiply-resistant meticillin-resistant Staphylococcus aureus lineage in South Yorkshire identified by whole genome sequencing. J Hosp Infect 2019; 103:454-460. [PMID: 31408690 DOI: 10.1016/j.jhin.2019.08.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 08/06/2019] [Indexed: 01/28/2023]
Abstract
BACKGROUND A cluster of seven cases of skin and wound infections caused by a multiply resistant meticillin-resistant Staphylococcus aureus (MRSA) were detected in a small-town community in South Yorkshire. Initial microbiological investigations showed that all isolates belonged to a spa type observed rarely in England (t1476). AIM To describe the epidemiology of t1476 MRSA in South Yorkshire. METHODS Retrospective and prospective case ascertainment was promoted through communication with local microbiology laboratories. Public health investigation included a detailed review of clinical notes for a subset of nine cases. Genomic and phylogenetic analysis was undertaken on t1476 MRSA. FINDINGS Thirty-two cases of t1476 MRSA infection or colonization were identified between December 2014 and February 2018. Cases were older adults (aged 50-98 years). Healthcare exposures for a subset of nine cases indicated frequent contact with a team of district nurses, with all but one case receiving treatment on the same day as another case prior to their own diagnosis. No cases were admitted to hospital at the time of specimen collection. Despite detailed investigations, no carriers were detected among district nursing staff. A long-term carrier/super-shedder was not found. Phylogenetic analysis indicated that t1476 MRSA cases from South Yorkshire were monophyletic and distant from both MRSA of the same lineage from elsewhere in the UK (N = 15) and from publicly available sequences from Tanzania. CONCLUSION Genomic and epidemiological analyses indicate community-based transmission of a multiply resistant MRSA clone within South Yorkshire introduced around 2012-2013, prior to the detection of a spatial-temporal cluster associated with a distinct risk group. Surveillance data indicate continued circulation.
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Affiliation(s)
- L Utsi
- Field Service Yorkshire and Humber, National Infection Service, Public Health England, Leeds, UK.
| | - B Pichon
- Healthcare Associated Infections and Antimicrobial Resistance Division, National Infection Service, Public Health England, London, UK
| | - N Arunachalam
- Public Health England Yorkshire and Humber, Leeds, UK
| | - A Kerrane
- The Rotherham NHS Foundation Trust, Rotherham, UK
| | - E Batten
- NHS Rotherham Clinical Commissioning Group, Rotherham, UK
| | - M Denton
- Field Service Yorkshire and Humber, National Infection Service, Public Health England, Leeds, UK
| | - R Townsend
- Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - K N Agwuh
- Doncaster & Bassetlaw Teaching Hospitals, Doncaster, UK
| | - G J Hughes
- Field Service Yorkshire and Humber, National Infection Service, Public Health England, Leeds, UK
| | - A Kearns
- Healthcare Associated Infections and Antimicrobial Resistance Division, National Infection Service, Public Health England, London, UK
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7
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Butin M, Martins-Simões P, Pichon B, Leyssene D, Bordes-Couecou S, Meugnier H, Rouard C, Lemaitre N, Schramm F, Kearns A, Spiliopoulou I, Hyyryläinen HL, Dumitrescu O, Vandenesch F, Dupieux C, Laurent F. Emergence and dissemination of a linezolid-resistant Staphylococcus capitis clone in Europe. J Antimicrob Chemother 2017; 72:1014-1020. [PMID: 27999045 DOI: 10.1093/jac/dkw516] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 11/03/2016] [Indexed: 11/13/2022] Open
Abstract
Objectives We investigated the epidemiological, clinical, microbiological and genetic characteristics of linezolid-resistant (LZR) Staphylococcus capitis isolates from French ICUs, and compared them with LZR S. capitis isolates from other European countries. Methods All LZR isolates were subjected to antimicrobial susceptibility testing (AST) and the presence of cfr and optrA genes as well as mutations in the 23S rRNA and ribosomal proteins were investigated using specific PCR with sequencing. The genetic relationship between isolates was investigated using PFGE and WGS. Epidemiological data concerning LZR S. capitis were collected retrospectively in French microbiology laboratories. Results Twenty-one LZR isolates were studied: 9 from France, 11 from Greece and 1 from Finland. All were resistant to methicillin and aminoglycosides. In addition, this unusual AST profile was identified in S. capitis isolates from seven French hospitals, and represented up to 12% of the S. capitis isolates in one centre. A G2576T mutation in 23S rRNA was identified in all isolates; cfr and optrA genes were absent. All isolates belonged to the same clone on the basis of their PFGE profiles, whatever their geographical origin. WGS found at most 212 SNPs between core genomes of the LZR isolates. Conclusions We identified and characterized an LZR S. capitis clone disseminated in three European countries, harbouring the same multiple resistance and a G2576T mutation in the 23S rRNA. The possible unrecognized wider distribution of this clone, belonging to a species classically regarded as a low-virulence skin colonizer, is of major concern not least because of the increasing use of oxazolidinones.
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Affiliation(s)
- M Butin
- International Center for Infectiology Research (CIRI), INSERM U1111-CNRS UMR5308-ENS Lyon-University Claude Bernard Lyon 1, France.,Department of Bacteriology, Hospices Civils de Lyon, Lyon, France
| | - P Martins-Simões
- International Center for Infectiology Research (CIRI), INSERM U1111-CNRS UMR5308-ENS Lyon-University Claude Bernard Lyon 1, France.,Department of Bacteriology, Hospices Civils de Lyon, Lyon, France.,National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France
| | - B Pichon
- National Infection Service, Public Health England, Colindale, London, UK
| | - D Leyssene
- Department of Bacteriology, Centre Hospitalier de la Côte Basque, Bayonne, France
| | - S Bordes-Couecou
- Department of Bacteriology, Centre Hospitalier de la Côte Basque, Bayonne, France
| | - H Meugnier
- International Center for Infectiology Research (CIRI), INSERM U1111-CNRS UMR5308-ENS Lyon-University Claude Bernard Lyon 1, France.,Department of Bacteriology, Hospices Civils de Lyon, Lyon, France.,National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France
| | - C Rouard
- Department of Bacteriology, Hôpital Antoine-Béclère, University Paris Sud, Clamart, France
| | - N Lemaitre
- Univ. Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204, Center for Infection and Immunity of Lille, Lille, F-59000, France
| | - F Schramm
- Department of Bacteriology, CHRU de Strasbourg, EA7290 Early Bacterial Virulence, FMTS, Université de Strasbourg, Strasbourg, France
| | - A Kearns
- National Infection Service, Public Health England, Colindale, London, UK
| | - I Spiliopoulou
- National Staphylococcal Reference Laboratory, Department of Microbiology, School of Medicine, University of Patras, Patras, Greece
| | | | - O Dumitrescu
- International Center for Infectiology Research (CIRI), INSERM U1111-CNRS UMR5308-ENS Lyon-University Claude Bernard Lyon 1, France.,Department of Bacteriology, Hospices Civils de Lyon, Lyon, France.,National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France
| | - F Vandenesch
- International Center for Infectiology Research (CIRI), INSERM U1111-CNRS UMR5308-ENS Lyon-University Claude Bernard Lyon 1, France.,Department of Bacteriology, Hospices Civils de Lyon, Lyon, France.,National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France
| | - C Dupieux
- International Center for Infectiology Research (CIRI), INSERM U1111-CNRS UMR5308-ENS Lyon-University Claude Bernard Lyon 1, France.,Department of Bacteriology, Hospices Civils de Lyon, Lyon, France.,National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France
| | - F Laurent
- International Center for Infectiology Research (CIRI), INSERM U1111-CNRS UMR5308-ENS Lyon-University Claude Bernard Lyon 1, France.,Department of Bacteriology, Hospices Civils de Lyon, Lyon, France.,National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France
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8
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Pokines JT, Sussman R, Gough M, Ralston C, McLeod E, Brun K, Kearns A, Moore TL. Taphonomic Analysis of Rodentia and Lagomorpha Bone Gnawing Based Upon Incisor Size. J Forensic Sci 2016; 62:50-66. [DOI: 10.1111/1556-4029.13254] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 01/19/2016] [Accepted: 04/10/2016] [Indexed: 11/29/2022]
Affiliation(s)
- James T. Pokines
- Forensic Anthropology Program; Department of Anatomy and Neurobiology; Boston University School of Medicine; 72 East Concord Street, L1004 Boston MA 02118
| | - Rachel Sussman
- Forensic Anthropology Program; Department of Anatomy and Neurobiology; Boston University School of Medicine; 72 East Concord Street, L1004 Boston MA 02118
| | - Megan Gough
- Forensic Anthropology Program; Department of Anatomy and Neurobiology; Boston University School of Medicine; 72 East Concord Street, L1004 Boston MA 02118
| | - Claira Ralston
- Forensic Anthropology Program; Department of Anatomy and Neurobiology; Boston University School of Medicine; 72 East Concord Street, L1004 Boston MA 02118
| | - Elizabeth McLeod
- Forensic Anthropology Program; Department of Anatomy and Neurobiology; Boston University School of Medicine; 72 East Concord Street, L1004 Boston MA 02118
| | - Karen Brun
- Forensic Anthropology Program; Department of Anatomy and Neurobiology; Boston University School of Medicine; 72 East Concord Street, L1004 Boston MA 02118
| | - Aisling Kearns
- Forensic Anthropology Program; Department of Anatomy and Neurobiology; Boston University School of Medicine; 72 East Concord Street, L1004 Boston MA 02118
| | - Tara L. Moore
- Forensic Anthropology Program; Department of Anatomy and Neurobiology; Boston University School of Medicine; 72 East Concord Street, L1004 Boston MA 02118
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9
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Abstract
BACKGROUND It is usually assumed that housing tenure and car access are associated with health simply because they are acting as markers for social class or income and wealth. However, previous studies conducted in the late 1990s found that these household assets were associated with health independently of social class and income. Here, we set out to examine if this is still the case. METHODS We use data from our 2010 postal survey of a random sample of adults (n=2092) in 8 local authority areas in the West of Scotland. Self-reported health measures included limiting longstanding illness (LLSI), general health over the last year and the Hospital Anxiety and Depression Scale. RESULTS We found a statistically significant relationship between housing tenure and all 4 health measures, regardless of the inclusion of social class or income as controls. Compared with owner occupiers, social renters were more likely to report ill-health (controlling for social class-LLSI OR: 3.24, general health OR: 2.82, anxiety η2: 0.031, depression η2: 0.048, controlling for income-LLSI OR: 3.28, general health OR: 2.82, anxiety η2: 0.033, depression η2: 0.057) (p<0.001 for all models). Car ownership was independently associated with depression and anxiety, with non-owners at higher risk of both (controlling for income-anxiety η2: 0.010, depression η2: 0.023, controlling for social class-anxiety η2: 0.013, depression η2: 0.033) (p<0.001 for all models). CONCLUSIONS Our results show that housing tenure and car ownership are still associated with health, after taking known correlates (age, sex, social class, income) into account. Further research is required to unpack some of the features of these household assets such as the quality of the dwelling and access to and use of different forms of transport to determine what health benefits or disbenefits they may be associated with in different contexts.
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Affiliation(s)
- A Ellaway
- MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK
| | - L Macdonald
- MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK
| | - A Kearns
- Department of Urban Studies, University of Glasgow, Glasgow, UK
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10
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Bouchiat C, Curtis S, Spiliopoulou I, Bes M, Cocuzza C, Codita I, Dupieux C, Giormezis N, Kearns A, Laurent F, Molinos S, Musumeci R, Prat C, Saadatian-Elahi M, Tacconelli E, Tristan A, Schulte B, Vandenesch F. MRSA infections among patients in the emergency department: a European multicentre study. J Antimicrob Chemother 2016; 72:372-375. [PMID: 27798212 DOI: 10.1093/jac/dkw431] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/09/2016] [Accepted: 09/13/2016] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND MRSA is a therapeutic concern worldwide, and a major agent of community-acquired skin and soft tissue infections (CA-SSTIs). While the US epidemiology of MRSA in CA-SSTIs is well described and reports the high prevalence of the USA300 clone, data on the European situation are lacking. OBJECTIVES To determine the prevalence and clonal characteristics of MRSA in CA-SSTIs in seven European emergency departments. PATIENTS AND METHODS From April to June 2015, patients presenting to the tertiary hospital emergency department with a Staphylococcus aureus CA-SSTI were prospectively enrolled. S. aureus isolates were characterized by antimicrobial susceptibility testing, detection of Panton-Valentine leucocidin encoding genes and spa-typing, MLST and/or DNA microarray. RESULTS Two-hundred and five cases of S. aureus-associated CA-SSTIs were included, comprising folliculitis, furuncles, abscesses, paronychia, impetigo, carbuncles and cellulitis. Of the 205 cases, we report an MRSA prevalence rate of 15.1%, with a north (0%) to south (29%) increasing gradient. Fifty-one isolates were Panton-Valentine leucocidin-positive (24.9%), whether MSSA or MRSA, with a heterogeneous distribution between countries. Clonal distribution of MSSA and MRSA showed high diversity, with no predominant circulating clone and no archetypical USA300 CA-MRSA clone. CONCLUSIONS This original prospective multicentre study highlights stark differences in European MRSA epidemiology compared with the USA, and that the USA300 CA-MRSA clone is not predominant among community-infected patients in Europe.
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Affiliation(s)
- C Bouchiat
- National Reference Center for Staphylococci, 59 Bd Louis Pinel, 69677 Bron cedex, Lyon, France
| | - S Curtis
- Staphylococcus Reference Service, Public Health England, 61 Colindale Avenue London NW9 5EQ, UK
| | - I Spiliopoulou
- National Reference Laboratory for Staphylococci, University of Patras, University Campus, Rion 26504, Patras, Greece
| | - M Bes
- National Reference Center for Staphylococci, 59 Bd Louis Pinel, 69677 Bron cedex, Lyon, France
| | - C Cocuzza
- Laboratory of Clinical Microbiology and Virology, University of Milano-Bicocca, Via Cadore 48, Monza, Italy
| | - I Codita
- Cantacuzino National Institute of Research, Splaiul Independentei 103, RO-050096 Bucharest, Romania
| | - C Dupieux
- National Reference Center for Staphylococci, 59 Bd Louis Pinel, 69677 Bron cedex, Lyon, France
| | - N Giormezis
- National Reference Laboratory for Staphylococci, University of Patras, University Campus, Rion 26504, Patras, Greece
| | - A Kearns
- Staphylococcus Reference Service, Public Health England, 61 Colindale Avenue London NW9 5EQ, UK
| | - F Laurent
- National Reference Center for Staphylococci, 59 Bd Louis Pinel, 69677 Bron cedex, Lyon, France
| | - S Molinos
- Servei de Microbiologia Hospital Universitari Germans Trias i Pujol, Badalona, Spain.,CIBER Enfermedades Respiratorias. Carretera del Canyet s/n. 08916 Badalona, Spain
| | - R Musumeci
- Laboratory of Clinical Microbiology and Virology, University of Milano-Bicocca, Via Cadore 48, Monza, Italy
| | - C Prat
- Servei de Microbiologia Hospital Universitari Germans Trias i Pujol, Badalona, Spain.,CIBER Enfermedades Respiratorias. Carretera del Canyet s/n. 08916 Badalona, Spain
| | - M Saadatian-Elahi
- Epidemiology unit, Hospices Civils de Lyon, Place d'Arsonval, 69008 Lyon, France
| | - E Tacconelli
- Division of Infectious Diseases, Department of Internal Medicine 1, University Hospital Tuebingen, Geissweg 3, 72076 Tuebingen, Germany
| | - A Tristan
- National Reference Center for Staphylococci, 59 Bd Louis Pinel, 69677 Bron cedex, Lyon, France
| | - B Schulte
- Institut für Mikrobiologie und Infektionsmedizin, University Hospital Tuebingen, Auf der Morgenstelle 28, 72076 Tuebingen, Germany
| | - F Vandenesch
- National Reference Center for Staphylococci, 59 Bd Louis Pinel, 69677 Bron cedex, Lyon, France
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Butin M, Rasigade JP, Martins-Simões P, Meugnier H, Lemriss H, Goering RV, Kearns A, Deighton MA, Denis O, Ibrahimi A, Claris O, Vandenesch F, Picaud JC, Laurent F. Wide geographical dissemination of the multiresistant Staphylococcus capitis NRCS-A clone in neonatal intensive-care units. Clin Microbiol Infect 2015; 22:46-52. [PMID: 26404028 DOI: 10.1016/j.cmi.2015.09.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 09/03/2015] [Accepted: 09/08/2015] [Indexed: 10/23/2022]
Abstract
Nosocomial late-onset sepsis represents a frequent cause of morbidity and mortality in preterm neonates. The Staphylococcus capitis clone NRCS-A has been previously described as an emerging cause of nosocomial bacteraemia in French neonatal intensive-care units (NICUs). In this study, we aimed to explore the possible unrecognized dissemination of this clone on a larger geographical scale. One hundred methicillin-resistant S. capitis strains isolated from neonates (n = 86) and adult patients (n = 14) between 2000 and 2013 in four different countries (France, Belgium, the UK, and Australia) were analysed with SmaI pulsed-field gel electrophoresis (PFGE) and dru typing. The vast majority of NICU strains showed the NRCS-A pulsotype and the dt11c type (96%). We then randomly selected 14 isolates (from neonates, n = 12, three per country; from adult patients, n = 2), considered to be a subset of representative isolates, and performed further molecular typing (SacII PFGE, SCCmec typing, and multilocus sequence typing-like analysis), confirming the clonality of the S. capitis strains isolated from neonates, despite their distant geographical origin. Whole genome single-nucleotide polymorphism-based phylogenetic analysis of five NICU isolates (from the different countries) attested to high genetic relatedness within the NRCS-A clone. Finally, all of the NRCS-A strains showed multidrug resistance (e.g. methicillin and aminoglycoside resistance, and decreased vancomycin susceptibility), with potential therapeutic implications for infected neonates. In conclusion, this study represents the first report of clonal dissemination of methicillin-resistant coagulase-negative Staphylococcus clone on a large geographical scale. Questions remain regarding the origin and means of international spread, and the reasons for this clone's apparent predilection for neonates.
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Affiliation(s)
- M Butin
- Department of Clinical Microbiology, Northern Hospital Group, Hospices Civils de Lyon, Lyon, France; International Centre for Research in Infectious Diseases (CIRI), INSERM U1111, CNRS UMR5308, Université Lyon 1, ENS de Lyon, Lyon, France.
| | - J-P Rasigade
- Department of Clinical Microbiology, Northern Hospital Group, Hospices Civils de Lyon, Lyon, France; International Centre for Research in Infectious Diseases (CIRI), INSERM U1111, CNRS UMR5308, Université Lyon 1, ENS de Lyon, Lyon, France; National Reference Centre for Staphylococci, Hospices Civils de Lyon, Lyon, France; Claude Bernard University Lyon 1, Villeurbanne, France
| | - P Martins-Simões
- Department of Clinical Microbiology, Northern Hospital Group, Hospices Civils de Lyon, Lyon, France; International Centre for Research in Infectious Diseases (CIRI), INSERM U1111, CNRS UMR5308, Université Lyon 1, ENS de Lyon, Lyon, France; National Reference Centre for Staphylococci, Hospices Civils de Lyon, Lyon, France
| | - H Meugnier
- International Centre for Research in Infectious Diseases (CIRI), INSERM U1111, CNRS UMR5308, Université Lyon 1, ENS de Lyon, Lyon, France; National Reference Centre for Staphylococci, Hospices Civils de Lyon, Lyon, France
| | - H Lemriss
- Laboratory of Biotechnology, Faculty of Medicine and Pharmacy of Rabat, Mohamed V University of Rabat, Rabat, Morocco
| | | | - A Kearns
- Public Health England, Staphylococcus Reference Service, Colindale, London, UK
| | | | - O Denis
- Erasme Hospital, Université Libre de Bruxelles, Laboratoire de Référence MRSA, Staphylocoques, Department of Microbiology, Brussels, Belgium
| | - A Ibrahimi
- Laboratory of Biotechnology, Faculty of Medicine and Pharmacy of Rabat, Mohamed V University of Rabat, Rabat, Morocco
| | - O Claris
- Claude Bernard University Lyon 1, Villeurbanne, France; Neonatal Intensive Care Unit, Eastern Hospital Group, Hospices Civils de Lyon, Bron, France
| | - F Vandenesch
- International Centre for Research in Infectious Diseases (CIRI), INSERM U1111, CNRS UMR5308, Université Lyon 1, ENS de Lyon, Lyon, France; National Reference Centre for Staphylococci, Hospices Civils de Lyon, Lyon, France; Claude Bernard University Lyon 1, Villeurbanne, France
| | - J-C Picaud
- Claude Bernard University Lyon 1, Villeurbanne, France; Neonatal Intensive Care Unit, Northern Hospital Group, Hospices Civils de Lyon, Lyon, France
| | - F Laurent
- Department of Clinical Microbiology, Northern Hospital Group, Hospices Civils de Lyon, Lyon, France; International Centre for Research in Infectious Diseases (CIRI), INSERM U1111, CNRS UMR5308, Université Lyon 1, ENS de Lyon, Lyon, France; National Reference Centre for Staphylococci, Hospices Civils de Lyon, Lyon, France; Claude Bernard University Lyon 1, Villeurbanne, France
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Egan M, Kearns A, Curl A, Katikireddi SW, Lawson K, Tannahill C. OP90 Proportionate universalism in practice? a quasi-experimental study of a UK housing-led neighbourhood renewal programme’s impact on health inequalities. Br J Soc Med 2015. [DOI: 10.1136/jech-2015-206256.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Kearns A, Gurney B, Johnson P. Silicone wafers at the Royal Surrey County Hospital: 3-year review. Br J Oral Maxillofac Surg 2015; 53:1043-4. [PMID: 26243386 DOI: 10.1016/j.bjoms.2015.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 07/13/2015] [Indexed: 10/23/2022]
Abstract
Accurate orthognathic wafers manufactured in the laboratory are essential for the transfer of preoperative prescribed movements to theatre, and most are made of poly(methyl methacrylate) (PMMA). At the Royal Surrey County Hospital we used 416 silicone wafers in 292 patients from January 2011 to December 2013. We report how a revised design has improved self-retention and intraoperative visualisation.
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Affiliation(s)
- A Kearns
- Maxillofacial Unit, Royal Surrey County Hospital NHS Foundation Trust, England, UK.
| | - B Gurney
- Maxillofacial Unit, Royal Surrey County Hospital NHS Foundation Trust, England, UK
| | - P Johnson
- Maxillofacial Unit, Royal Surrey County Hospital NHS Foundation Trust, England, UK
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14
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O'Connor C, Powell J, Finnegan C, O'Gorman A, Barrett S, Hopkins K, Pichon B, Hill R, Power L, Woodford N, Coffey J, Kearns A, O'Connell N, Dunne C. Incidence, management and outcomes of the first cfr-mediated linezolid-resistant Staphylococcus epidermidis outbreak in a tertiary referral centre in the Republic of Ireland. J Hosp Infect 2015; 90:316-21. [DOI: 10.1016/j.jhin.2014.12.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 12/06/2014] [Indexed: 02/06/2023]
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15
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Butin M, Martins-Simões P, Picaud JC, Kearns A, Claris O, Vandenesch F, Laurent F, Rasigade JP. Adaptation to vancomycin pressure of multiresistant Staphylococcus capitis NRCS-A involved in neonatal sepsis. J Antimicrob Chemother 2015. [PMID: 26203181 DOI: 10.1093/jac/dkv217] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The Staphylococcus capitis clone NRCS-A has recently been described as a frequent cause of late-onset sepsis (LOS) in pre-term neonates worldwide. Representatives of this clone exhibit non-susceptibility to vancomycin, the first-line agent used in LOS. Cases of prolonged S. capitis LOS despite vancomycin treatment have been reported. We investigated whether NRCS-A strains exhibit faster adaptation to vancomycin pressure as compared with other staphylococci. METHODS Strains of S. capitis NRCS-A, S. capitis non-NRCS-A and Staphylococcus epidermidis (n = 2 each, all with vancomycin MICs ≤2 mg/L) and the prototype vancomycin-heteroresistant Staphylococcus aureus Mu3 were subcultured daily for 15 days with 0.25-32 mg/L vancomycin. Regression coefficients of daily log2 MICs on time were used to estimate the kinetics of resistance development. Changes in bacterial cell-wall thickness were measured by transmission electron microscopy. To assess the stability of resistance and the emergence of cross-resistance, vancomycin, teicoplanin, daptomycin and linezolid MICs were measured before and after vancomycin treatment, as well as after nine additional subcultures without antibiotics. RESULTS All strains developed a stable resistance to vancomycin, but this occurred significantly faster in S. capitis NRCS-A than in S. capitis non-NRCS-A (P < 0.001) and other species (P < 0.0001). Vancomycin resistance in S. capitis NRCS-A was associated with significant cell-wall thickening and an increase in MICs of daptomycin and teicoplanin, but not linezolid. CONCLUSIONS S. capitis NRCS-A rapidly adapts to vancomycin pressure as compared with potential niche competitors, a feature that might contribute to its success in neonatal ICUs where vancomycin is widely prescribed.
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Affiliation(s)
- M Butin
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, University of Lyon, Lyon, France
| | - P Martins-Simões
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, University of Lyon, Lyon, France National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France
| | - J C Picaud
- Neonatal Intensive Care Unit, Northern Hospital Group, Hospices Civils de Lyon, Lyon, France
| | - A Kearns
- Public Health England, Colindale, London, UK
| | - O Claris
- Neonatal Intensive Care Unit, Eastern Hospital Group, Hospices Civils de Lyon, Lyon, France
| | - F Vandenesch
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, University of Lyon, Lyon, France National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France Laboratory of Bacteriology, Hospices Civils de Lyon, Lyon, France
| | - F Laurent
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, University of Lyon, Lyon, France National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France Laboratory of Bacteriology, Hospices Civils de Lyon, Lyon, France
| | - J P Rasigade
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, Ecole Normale Supérieure de Lyon, University of Lyon, Lyon, France National Reference Center for Staphylococci, Hospices Civils de Lyon, Lyon, France Laboratory of Bacteriology, Hospices Civils de Lyon, Lyon, France
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Lewis N, Parmar N, Hussain Z, Baker G, Green I, Howlett J, Kearns A, Cookson B, McDonald A, Wilson M, Ready D. Colonisation of dentures by Staphylococcus aureus and MRSA in out-patient and in-patient populations. Eur J Clin Microbiol Infect Dis 2015; 34:1823-6. [PMID: 26071000 DOI: 10.1007/s10096-015-2418-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 05/22/2015] [Indexed: 11/25/2022]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is an important human pathogen, and colonisation with this organism can result in localised or systemic infections which may be fatal. One hundred in-patients admitted to a London teaching hospital and 100 out-patients attending prosthetic dentistry clinics were recruited into this study. Of the 100 out-patients, 27 % harboured S. aureus on their dentures, compared to 33 % of in-patients. Only one out-patient had MRSA colonising their dentures whereas 12 % of the in-patients harboured MRSA. The median total bacterial count of the denture plaque samples was 6.2 × 10(7) cfu/sample and 6.9 × 10(7) cfu/sample for the out-patient and in-patient populations, respectively. In most instances, where present, S. aureus comprised less than 1 % of the total viable denture microbiota. Phage typing demonstrated that EMRSA-15 and non-typeable strains were harboured on dentures. The results of this study have revealed that dentures are a potential reservoir of MRSA and so account should be taken of these findings when planning decontamination procedures for elimination of this pathogen.
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Affiliation(s)
- N Lewis
- Eastman Dental Hospital, UCLH NHS Foundation Trust, 256 Gray's Inn Road, London, WC1X 8LD, UK
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17
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Moore G, Cookson B, Gordon NC, Jackson R, Kearns A, Singleton J, Smyth D, Wilson APR. Whole-genome sequencing in hierarchy with pulsed-field gel electrophoresis: the utility of this approach to establish possible sources of MRSA cross-transmission. J Hosp Infect 2015; 90:38-45. [PMID: 25648940 DOI: 10.1016/j.jhin.2014.12.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 12/18/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND In order to study the micro-epidemiology of meticillin-resistant Staphylococcus aureus (MRSA) effectively, the molecular typing method used must be able to distinguish between different MRSA strains. Pulsed-field gel electrophoresis (PFGE) can detect small genetic differences but is limited in its potential to distinguish isolates within a major lineage. Whole-genome sequencing (WGS) provides sufficient resolution to support or exclude links between otherwise indistinguishable isolates, but lacks the practical utility of conventional typing methods. AIM To explore the utility of WGS in a hierarchical approach with PFGE to help establish possible sources of MRSA cross-transmission in the intensive care setting. METHODS Possible transmission routes from donor to recipient via the hands of staff, the air or environmental surfaces were identified. Focused molecular typing used PFGE to explore these transmission hypotheses. WGS was applied when an acquisition event involved a common PFGE pulsotype. FINDINGS Thirty-eight of the 78 acquisition events could not be explored as clinical isolates were not available. PFGE excluded all potential donors from 26 of the remaining 40 acquisition events, but did identify a probable source in 14 new colonizations. Within the hypotheses tested, PFGE supported links between patients occupying the same bay, the same bed space, adjacent isolation rooms and different wards. When a patient source was not identified, PFGE implicated the ward environment and the hands of staff. However, WGS disproved three of these transmission pathways. CONCLUSION WGS can complement conventional typing methods by confirming or refuting possible MRSA transmission hypotheses. Epidemiological data are crucial in this process.
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Affiliation(s)
- G Moore
- Clinical Microbiology and Virology, University College London Hospitals NHS Foundation Trust, London, UK; Biosafety Investigation Unit, Public Health England, Porton Down, Salisbury, UK.
| | - B Cookson
- Staphylococcus Reference Unit, Antimicrobial Resistance and Healthcare Associated Infections, Public Health England Colindale, London, UK; Division of Infection and Immunity, University College London, London, UK
| | - N C Gordon
- NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
| | - R Jackson
- Clinical Microbiology and Virology, University College London Hospitals NHS Foundation Trust, London, UK
| | - A Kearns
- Staphylococcus Reference Unit, Antimicrobial Resistance and Healthcare Associated Infections, Public Health England Colindale, London, UK
| | - J Singleton
- Department of Intensive Care, Royal Free Hampstead NHS Trust, London, UK
| | - D Smyth
- Clinical Microbiology and Virology, University College London Hospitals NHS Foundation Trust, London, UK
| | - A P R Wilson
- Clinical Microbiology and Virology, University College London Hospitals NHS Foundation Trust, London, UK
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18
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Mahida N, Levi K, Kearns A, Snape S, Moppett I. Investigating the impact of clinical anaesthetic practice on bacterial contamination of intravenous fluids and drugs. J Hosp Infect 2015; 90:70-4. [PMID: 25648939 DOI: 10.1016/j.jhin.2014.11.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 11/19/2014] [Indexed: 11/26/2022]
Abstract
Syringes (N = 426), ventilator machine swabs (N = 202) and intravenous (IV) fluid administration sets (N = 47) from 101 surgical cases were evaluated for bacterial contamination. Cultures from the external surface of syringe tips and syringe contents were positive in 46% and 15% of cases, respectively. The same bacterial species was cultured from both ventilator and syringe in 13% of cases, and was also detected in the IV fluid administration set in two cases. A significant association was found between emergency cases and contaminated syringes (odds ratio 4.5, 95% confidence interval 1.37-14.8; P = 0.01). Other risk factors included not using gloves and failure to cap syringes.
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Affiliation(s)
- N Mahida
- Department of Clinical Microbiology, Nottingham University Hospitals NHS Trust, Nottingham, UK.
| | - K Levi
- Department of Clinical Microbiology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - A Kearns
- Antimicrobial Resistance and Healthcare Associated Infection Reference Unit, Public Health England, London, UK
| | - S Snape
- Department of Clinical Microbiology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - I Moppett
- Anaesthesia and Critical Care, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK
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Larsen AR, Petersen A, Holmes M, Kearns A, Hill R, Edwards G, Teale C, Skov R. Utility of a newly developed Mueller-Hinton E agar for the detection of MRSA carrying the novel mecA homologue mecC. J Antimicrob Chemother 2014; 70:1256-7. [DOI: 10.1093/jac/dku512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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20
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Trevisan F, Curl A, Kearns A, Ellaway A. Financial difficulties, health and wellbeing at a time of economic recovery: Living with the legacy of austerity Britain. Eur J Public Health 2014. [DOI: 10.1093/eurpub/cku161.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Baba CRE, McIntosh E, Tannahill C, Lewsey J, Kearns A. Empowerment as an alternative pathway to health gains in urban regeneration; findings from the GOWELL study. Eur J Public Health 2014. [DOI: 10.1093/eurpub/cku164.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Paranthaman K, Bentley A, Milne LM, Kearns A, Loader S, Thomas A, Thompson F, Logan M, Newitt S, Puleston R. Nosocomial outbreak of staphyloccocal scalded skin syndrome in neonates in England, December 2012 to March 2013. ACTA ACUST UNITED AC 2014; 19. [PMID: 25166346 DOI: 10.2807/1560-7917.es2014.19.33.20880] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Staphylococcal scalded skin syndrome (SSSS) is a blistering skin condition caused by exfoliative toxin-producing strains of Staphylococcus aureus. Outbreaks of SSSS in maternity settings are rarely reported. We describe an outbreak of SSSS that occurred among neonates born at a maternity unit in England during December 2012 to March 2013. Detailed epidemiological and microbiological investigations were undertaken. Eight neonates were found to be infected with the outbreak strain of S. aureus, of spa type t346, representing a single pulsotype. All eight isolates contained genes encoding exfoliative toxin A (eta) and six of them contained genes encoding toxin B (etb). Nasal swabs taken during targeted staff screening yielded a staphylococcal carriage rate of 21% (17/80), but none contained the outbreak strain. Mass screening involving multi-site swabbing and pooled, enrichment culture identified a healthcare worker (HCW) with the outbreak strain. This HCW was known to have a chronic skin condition and their initial nasal screen was negative. The outbreak ended when they were excluded from work. This outbreak highlights the need for implementing robust swabbing and culture methodswhen conventional techniques are unsuccessful in identifying staff carrier(s). This study adds to the growing body of evidence on the role of HCWs in nosocomial transmission of S. aureus.
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Affiliation(s)
- K Paranthaman
- Public Health England, East Midlands Public Health England Centre, Leicester, United Kingdom
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23
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Toma W, Kearns A, Potter J, Raifman S, Castro M. 49: A Framework for Comprehensive Monitoring and Evaluation of an Innovative Child Development Center in Fortaleza, Brazil. Paediatr Child Health 2014. [DOI: 10.1093/pch/19.6.e35-48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Crusz S, Yates C, Holden S, Kearns A, Boswell T. Prolonged outbreak of Staphylococcus aureus surgical site infection traced to a healthcare worker with psoriasis. J Hosp Infect 2014; 86:42-6. [DOI: 10.1016/j.jhin.2013.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 10/21/2013] [Indexed: 11/29/2022]
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25
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Molaodi OR, Leyland AH, Ellaway A, Kearns A, Harding S. PP61 Neighbourhoods and Ethnic Differences in Biological ‘Wear and Tear’. Br J Soc Med 2013. [DOI: 10.1136/jech-2013-203126.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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26
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Patel M, Thomas H, Room J, Wilson Y, Kearns A, Gray J. Successful control of nosocomial transmission of the USA300 clone of community-acquired meticillin-resistant Staphylococcus aureus in a UK paediatric burns centre. J Hosp Infect 2013; 84:319-22. [DOI: 10.1016/j.jhin.2013.04.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 04/03/2013] [Indexed: 10/26/2022]
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Lawson KD, Kearns A, Petticrew M, Fenwick EAL. Investing in health: is social housing value for money? A cost-utility analysis. J Epidemiol Community Health 2013; 67:829-34. [PMID: 23868529 DOI: 10.1136/jech-2012-202137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND There is a healthy public policy agenda investigating the health impacts of improving living conditions. However, there are few economic evaluations, to date, assessing value for money. We conducted the first cost-effectiveness analysis of a nationwide intervention transferring social and private tenants to new-build social housing, in Scotland. METHODS A quasi-experimental prospective study was undertaken involving 205 intervention households and 246 comparison households, over 2 years. A cost-utility analysis assessed the average cost per change in health utility (a single score summarising overall health-related quality of life), generated via the SF-6D algorithm. Construction costs for new builds were included. Analysis was conducted for all households, and by family, adult and elderly households; with estimates adjusted for baseline confounders. Outcomes were annuitised and discounted at 3.5%. RESULTS The average discounted cost was £18, 708 per household, at a national programme cost of £ 28.4 million. The average change in health utility scores in the intervention group attributable to the intervention were +0.001 for all households, +0.001 for family households, -0.04 for adult households and -0.03 for elderly households. All estimates were statistically insignificant. CONCLUSIONS At face value, the interventions were not value for money in health terms. However, because the policy rationale was the amenity provision of housing for disadvantaged groups, impacts extend beyond health and may be fully realised over the long term. Before making general value-for-money inferences, economic evaluation should attempt to estimate the full social value of interventions, model long-term impacts and explicitly incorporate equity considerations.
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Affiliation(s)
- K D Lawson
- Health Economics and Health Technology Assessment, Institute of Health & Wellbeing, University of Glasgow, UK
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28
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Hope R, Blackburn RM, Verlander NQ, Johnson AP, Kearns A, Hill R, Hopkins S, Sheridan E, Livermore DM, Scarborough M, Majumdar S, Cunniffe J, Farrington M, Gouliouris T, Marodi C, Godwin P, Tuck A, Warren R, Coe P, Hassan I, Mannion P, Loudon K, Youngs E, Johnson A, Lee M, Weston V, Guleri A, Howe R, Matthew D, Cotterill S, Todd N, Patel B, Mlangeni D, Stockley JM, Spencer R, Gardner J, Thwaites G, Kirby A, Hopkins S, Crook D, Llewellyn M, Price J, Scarborough M, Morris Jones S, Tilley R. Vancomycin MIC as a predictor of outcome in MRSA bacteraemia in the UK context. J Antimicrob Chemother 2013; 68:2641-7. [DOI: 10.1093/jac/dkt234] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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29
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Presland AD, Clare ICH, Broughton S, Luke L, Wheeler E, Fairchild G, Watson PC, Chan WYS, Kearns A, Ring HA. Hypothalamic-pituitary-adrenal (HPA) axis activity in adults with intellectual disabilities: a preliminary investigation. J Intellect Disabil Res 2013; 57:539-551. [PMID: 22533573 DOI: 10.1111/j.1365-2788.2012.01557.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND Cortisol is a marker of physiological arousal, exhibiting a characteristic pattern of diurnal activity. The daily cortisol profile has been xamined extensively and is atypical in a number of clinical disorders. However, there are very few studies focussing on the cortisol profile in adults with intellectual disabilities (ID). This paper reports a preliminary investigation into the nature of the cortisol profile in adults with mild or moderate ID and provides reflections on the challenges of psychophysiological research in this population. METHODS On two consecutive days, 39 adults with mild or moderate ID each donated saliva samples for cortisol analysis, at multiple times between waking and evening. A comparison between these data and the published literature permitted a descriptive assessment of the cortisol awakening response (CAR) and diurnal profile. A variety of psychometric measures and an assessment of behavioural history were also collected in order to describe aspects of the participants' emotional and behavioural states. RESULTS Individuals with ID exhibit a diurnal cortisol secretion profile, qualitatively similar to that of the typical, healthy, adult population. However, the findings also suggested a blunted CAR, warranting further investigation. There was also some evidence that cortisol secretion was affected by anxiety and a recent history of aggression. CONCLUSION While further work is required to characterise the CAR fully, there was no indication that the diurnal cortisol profile among people with ID differs from that of the typical population. This study also demonstrates that, although challenging, it is feasible, and acceptable to participants, to collect repeated physiological measures from men and women with mild and moderate ID.
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Affiliation(s)
- A D Presland
- Cambridge Intellectual and Developmental Disabilities Research Group, Section of Developmental Psychiatry, Department of Psychiatry, University of Cambridge, Cambridge, UK
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Horner C, Parnell P, Hall D, Kearns A, Heritage J, Wilcox M. Meticillin-resistant Staphylococcus aureus in elderly residents of care homes: colonization rates and molecular epidemiology. J Hosp Infect 2013; 83:212-8. [PMID: 23332564 DOI: 10.1016/j.jhin.2012.11.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 11/11/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Meticillin-resistant Staphylococcus aureus (MRSA) is a significant cause of mortality and morbidity in healthcare and community settings; however, there is a paucity of large-scale, longitudinal studies monitoring the occurrence of MRSA in the care home setting. AIM To determine the molecular epidemiology of MRSA colonizing elderly residents of care homes. METHODS Residents in 65 care homes in Leeds, UK, were screened for MRSA nasal colonization in four consecutive years (2006-2009). Isolates were characterized using antibiotic susceptibility testing, detection of the Panton-Valentine leucocidin (PVL) locus, accessory gene regulator allotyping, characterization of the staphylococcal cassette chromosome mec element, spa-typing and pulsed-field gel electrophoresis. FINDINGS MRSA was recovered from 888 nasal swabs of 2492 residents and prevalence was similar (19-22%) throughout the study. Resistance to ≥3 antibiotic classes was common (34%), but resistance to only β-lactam agents was rare (3%); no PVL-positive isolates were identified. Most isolates were related to healthcare-associated epidemic-MRSA type 15 (EMRSA-15, ST22-IV); such isolates decreased in prevalence during the study (86-72%; P < 0.0001, χ(2)-test). The remainder belonged to five different multi-locus sequence type clonal complexes (CC). Most notably, CC59 strains increased in prevalence (10-25%; P < 0.0001, χ(2)-test) and were associated with high-level mupirocin resistance. CONCLUSIONS The molecular epidemiology of MRSA in care homes is complex and dynamic. There was a high, consistent prevalence of MRSA nasal colonization, dominated by healthcare-associated strains. Vigilance is recommended; however, as high-level mupirocin resistance was associated with a single clonal group (CC59) that significantly increased in prevalence during the study.
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Affiliation(s)
- C Horner
- Leeds Teaching Hospitals NHS Trust, Department of Microbiology, Old Medical School, Leeds, UK.
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Mason P, Kearns A. Physical activity and mental wellbeing in deprived neighbourhoods: A potential outcome of urban regeneration. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Mason P, Kearns A. To what extent may local crime rates, perceptions of crime and personal safety limit walking in deprived neighbourhoods? J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hill K, Nicholson A, Kearns A, Carroll T, Bourke S, Robb A. 129 Benefits of testing multiple isolates of Staphylococcus aureus isolated from the sputa of patients with cystic fibrosis. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60299-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Stegger M, Andersen PS, Kearns A, Pichon B, Holmes MA, Edwards G, Laurent F, Teale C, Skov R, Larsen AR. Rapid detection, differentiation and typing of methicillin-resistant Staphylococcus aureus harbouring either mecA or the new mecA homologue mecA(LGA251). Clin Microbiol Infect 2012; 18:395-400. [PMID: 22429460 DOI: 10.1111/j.1469-0691.2011.03715.x] [Citation(s) in RCA: 274] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The recent finding of a new mecA homologue, mecA(LGA251) , with only 70% nucleotide homology to the conventional mecA gene has brought the routine testing for mecA as a confirmatory test for methicillin-resistant Staphylococcus aureus (MRSA) into question. A multiplex PCR was designed to differentiate mecA(LGA251) from the known mecA together with detection of lukF-PV and the spa gene fragments, enabling direct spa typing by sequencing of the PCR amplicons. The PCR analysis and subsequent spa typing were validated on a large collection (n=185) of contemporary MRSA and methicillin-sensitive S. aureus isolates, including 127 isolates carrying mecA(LGA251) . The mecA(LGA251) gene was situated in staphylococcal cassette chromosome mec type XI elements, and sequence variation within a 631-bp fragment of mecA(LGA251) in 79 isolates indicated a very conserved gene sequence. Following a successful validation, the multiplex PCR strategy was implemented in the routine testing of MRSA for national surveillance. Over a 2-month period, among 203 samples tested, 12 new MRSA cases caused by isolates carrying mecA(LGA251) were identified, emphasizing the clinical importance of testing for these new MRSA isolates.
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Affiliation(s)
- M Stegger
- Department of Microbiological Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
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Bond L, Kearns A, Mason P, Tannahill C, Egan M, Whitley E. P1-402 Psychosocial pathways to mental well-being in deprived areas. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976f.93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Millership S, Cummins A, Irwin D, Kearns A, English P. Follow up of cases of PVL-positive Staphylococcus aureus is not worthwhile. J Infect 2011; 62:234-5. [PMID: 21281674 DOI: 10.1016/j.jinf.2011.01.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Accepted: 01/21/2011] [Indexed: 11/17/2022]
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Adams NG, Adekambi T, Afeltra J, Aguado J, Aires de Sousa M, Akiyoshi K, Al Hasan M, Ala-Kokko T, Albert M, Alfandari S, Allen D, Allerberger F, Almyroudis N, Alp E, Amin R, Anderson-Berry A, Andes DR, Andremont A, Andreu A, Angelakis M, Antachopoulos C, Antoniadou A, Arabatzis M, Arlet G, Arnez M, Arnold C, Asensio A, Asseray N, Ausiello C, Avni T, Ayling R, Baddour L, Baguelin M, Bányai K, Barbour A, Basco LK, Bauer D, Bayston R, Beall B, Becker K, Behr M, Bejon P, Belliot G, Benito-Fernandez J, Benjamin D, Benschop K, Berencsi G, Bergeron MG, Bernard K, Berner R, Beyersmann J, Bille J, Bizzini A, Bjarnsholt T, Blanc D, Blanco J, Blot S, Bohnert J, Boillat N, Bonomo R, Bonten M, Bordon JM, Borel N, Boschiroli ML, Bosilkovski M, Bosso JA, Botelho-Nevers E, Bou G, Bretagne S, Brouqui P, Brun-Buisson C, Brunetto M, Bucher H, Buchheidt D, Buckling A, Bulpa P, Cambau E, Canducci F, Cantón R, Capobianchi M, Carattoli A, Carcopino X, Cardona-Castro N, Carling PC, Carrat F, Castilla J, Castilletti C, Cavaco L, Cavallo R, Ceccherini-Silberstein F, Centrón D, Chappuis F, Charrel R, Chen M, Chevaliez S, Chezzi C, Chomel B, Chowers M, Chryssanthou E, Ciammaruconi A, Ciccozzi M, Cid J, Ciofu O, Cisneros D, Ciufolini MG, Clark C, Clarke SC, Clayton R, Clementi M, Clemons K, Cloeckaert A, Cloud J, Coenye T, Cohen Bacri S, Cohen R, Coia J, Colombo A, Colson P, Concerse P, Cordonnier C, Cormican M, Cornaglia G, Cornely O, Costa S, Cots F, Craxi A, Creti R, Crnich C, Cuenca Estrella M, Cusi MG, d'Ettorre G, da Cruz Lamas C, Daikos G, Dannaoui E, De Barbeyrac B, De Grazia S, de Jager C, de Lamballerie X, de Marco F, del Palacio A, Delpeyroux F, Denamur E, Denis O, Depaquit J, Deplano A, Desenclos JC, Desjeux P, Deutch S, Di Luca D, Dianzani F, Diep B, Diestra K, Dignani C, Dimopoulos G, Divizia M, Doi Y, Dornbusch HJ, Dotis J, Drancourt M, Drevinek P, Dromer F, Dryden M, Dubreuil L, Dubus JC, Dumitrescu O, Dumke R, DuPont H, Edelstein M, Eggimann P, Eis-Huebinger AM, El Atrouni WI, Entenza J, Ergonul O, Espinel-Ingroff A, Esteban J, Etienne J, Fan XG, Fenollar F, Ferrante P, Ferrieri P, Ferry T, Feuchtinger T, Finegold S, Fingerle V, Fitch M, Fitzgerald R, Flori P, Fluit A, Fontana R, Fournier PE, François M, Francois P, Freedman DO, Friedrich A, Gallego L, Gallinella G, Gangneux JP, Gannon V, Garbarg-Chenon A, Garbino J, Garnacho-Montero J, Gatermann S, Gautret P, Gentile G, Gerlich W, Ghannoum M, Ghebremedhin B, Ghigo E, Giamarellos-Bourboulis E, Girgis R, Giske C, Glupczynski Y, Gnarpe J, Gomez-Barrena E, Gorwitz RJ, Gosselin R, Goubau P, Gould E, Gradel K, Gray J, Gregson D, Greub G, Grijalva CG, Groll A, Groschup M, Gutiérrez J, Hackam DG, Hall WA, Hallett R, Hansen S, Harbarth S, Harf-Monteil C, Hasanjani RMR, Hasler P, Hatchette T, Hauser P, He Q, Hedges A, Helbig J, Hennequin C, Herrmann B, Hezode C, Higgins P, Hoesli I, Hoiby N, Hope W, Houvinen P, Hsu LY, Huard R, Humphreys H, Icardi M, Imoehl M, Ivanova K, Iwamoto T, Izopet J, Jackson Y, Jacobsen K, Jang TN, Jasir A, Jaulhac B, Jaureguy F, Jefferies JM, Jehl F, Johnstone J, Joly-Guillou ML, Jonas M, Jones M, Joukhadar C, Kahl B, Kaier K, Kaiser L, Kato H, Katragkou A, Kearns A, Kern W, Kerr K, Kessin R, Kibbler C, Kimberlin D, Kittang B, Klaassen C, Kluytmans J, Ko WC, Koh WJ, Kostrzewa M, Kourbeti I, Krause R, Krcmery V, Krizova P, Kuijper E, Kullberg BJ, Kumar G, Kunin CM, La Scola B, Lagging M, Lagrou K, Lamagni T, Landini P, Landman D, Larsen A, Lass-Floerl C, Laupland K, Lavigne JP, Leblebicioglu H, Lee B, Lee CH, Leggat P, Lehours P, Leibovici L, Leon L, Leonard N, Leone M, Lescure X, Lesprit P, Levy PY, Lew D, Lexau CA, Li SY, Li W, Lieberman D, Lina B, Lina G, Lindsay JA, Livermore D, Lorente L, Lortholary O, Lucet JC, Lund B, Lütticken R, MacLeod C, Madhi S, Maertens J, Maggi F, Maiden M, Maillard JY, Maira-Litran T, Maltezou H, Manian FA, Mantadakis E, Maragakis L, Marcelin AG, Marchaim D, Marchetti O, Marcos M, Markotic A, Martina B, Martínez J, Martinez JL, Marty F, Maurin M, McGee L, Mediannikov O, Meersseman W, Megraud F, Meletiadis J, Mellmann A, Meyer E, Meyer W, Meylan P, Michalopoulos A, Micol R, Midulla F, Mikami Y, Miller RF, Miragaia M, Miriagou V, Mitchell TJ, Miyakis S, Mokrousov I, Monecke S, Mönkemüller K, Monno L, Monod M, Morales G, Moriarty F, Morosini I, Mortensen E, Mubarak K, Mueller B, Mühlemann K, Muñoz Bellido JL, Murray P, Muscillo M, Mylotte J, Naessens A, Nagy E, Nahm MH, Nassif X, Navarro D, Navarro F, Neofytos D, Nes I, Ní Eidhin D, Nicolle L, Niederman MS, Nigro G, Nimmo G, Nordmann P, Nougairède A, Novais A, Nygard K, Oliveira D, Orth D, Ortiz JR, Osherov N, Österblad M, Ostrosky-Zeichner L, Pagano L, Palamara AT, Pallares R, Panagopoulou P, Pandey P, Panepinto J, Pappas G, Parkins M, Parola P, Pasqualotto A, Pasteran F, Paul M, Pawlotsky JM, Peeters M, Peixe L, Pepin J, Peralta G, Pereyre S, Perfect JR, Petinaki E, Petric M, Pettigrew M, Pfaller M, Philipp M, Phillips G, Pichichero M, Pierangeli A, Pierard D, Pigrau C, Pilishvili T, Pinto F, Pistello M, Pitout J, Poirel L, Poli G, Poppert S, Posfay-Barbe K, Pothier P, Poxton I, Poyart C, Pozzetto B, Pujol M, Pulcini C, Punyadeera C, Ramirez M, Ranque S, Raoult D, Rasigade JP, Re MC, Reilly JS, Reinert R, Renaud B, Rice L, Rich S, Richet H, Rigouts L, Riva E, Rizzo C, Robotham J, Rodicio MR, Rodriguez J, Rodriguez-Bano J, Rogier C, Roilides E, Rolain JM, Rooijakkers S, Rooney P, Rossi F, Rotimi V, Rottman M, Roux V, Ruhe J, Russo G, Sadowy E, Sagel U, Said SI, Saijo M, Sak B, Sa-Leao R, Sanders EAM, Sanguinetti M, Sarrazin C, Savelkoul P, Scheifele D, Schmidt WP, Schønheyder H, Schönrich G, Schrenzel J, Schubert S, Schwarz K, Schwarz S, Sefton A, Segondy M, Seifert H, Seng P, Senneville E, Sexton D, Shafer RW, Shalit I, Shankar N, Shata TM, Shields J, Sibley C, Sicinschi L, Siljander T, Simitsopoulou M, Simoons-Smit AM, Sissoko D, Sjögren J, Skiada A, Skoczynska A, Skov R, Slack M, Sogaard M, Sola C, Soriano A, Sotto A, Sougakoff W, Sougakoff W, Souli M, Spelberg B, Spelman D, Spiliopoulou I, Springer B, Stefani S, Stein A, Steinbach WJ, Steinbakk M, Strakova L, Strenger V, Sturm P, Sullivan P, Sutton D, Symmons D, Tacconelli E, Tamalet C, Tang JW, Tang YW, Tattevin P, Thibault V, Thomsen RW, Thuny F, Tong S, Torres C, Townsend R, Tristan A, Trouillet JL, Tsai HC, Tsitsopoulos P, Tuerlinckx D, Tulkens P, Tumbarello M, Tureen J, Turnidge JD, Turriziani O, Tutuian R, Uçkay I, Upton M, Vabret A, Vamvakas EC, van den Boom D, Van Eldere J, van Leeuwen W, van Strijp J, Van Veen S, Vandamme P, Vandenesch F, Vayssier M, Velin D, Venditti M, Venter M, Venuti A, Vergnaud G, Verheij T, Verhofstede C, Viscoli C, Vizza CD, Vogel U, Waller A, Wang YF, Warn P, Warris A, Wauters G, Weidmann M, Weill FX, Weinberger M, Welch D, Wellinghausen N, Wheat J, Widmer A, Wild F, Willems R, Willinger B, Winstanley C, Witte W, Wolff M, Wong F, Wootton M, Wyllie D, Xu W, Yamamoto S, Yaron S, Yildirim I, Zaoutis T, Zazzi M, Zbinden R, Zehender GG, Zemlickova H, Zerbini ML, Zhang L, Zhang Y, Zhao YD, Zhu Z, Zimmerli W. ACKNOWLEDGEMENT OF REVIEWERS. Clin Microbiol Infect 2011. [DOI: 10.1111/j.1469-0691.2010.03428.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Teare L, Shelley O, Millership S, Kearns A. Outbreak of Panton–Valentine leucocidin-positive meticillin-resistant Staphylococcus aureus in a regional burns unit. J Hosp Infect 2010; 76:220-4. [DOI: 10.1016/j.jhin.2010.04.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Accepted: 04/30/2010] [Indexed: 11/28/2022]
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Jenks P, Haill C, Kearns A, Adeodu A, Steer J, Harling K. FP3.5 Staff screening for MRSA: Five year experience in a UK hospital. J Hosp Infect 2010. [DOI: 10.1016/s0195-6701(10)60020-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Virgincar N, Boden G, Iyer S, Hill R, Honnor C, Cash D, Kearns A. OB2.2 A clonal outbreak of Staphylococcus capitis bloodstream infections in a neonatal intensive care unit (NICU) in the United Kingdom. J Hosp Infect 2010. [DOI: 10.1016/s0195-6701(10)60029-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Molaodi OR, Harding S, Leyland AH, Ellaway A, Kearns A. P37 Area deprivation, ethnic density and fast food outlets, supermarkets and physical activity structures in England. Br J Soc Med 2010. [DOI: 10.1136/jech.2010.120477.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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O'Connell NH, Mannix M, Philip RK, MacDonagh-White C, Slevin B, Monahan R, Boyle L, Whyte D, Kearns A. Infant Staphylococcal Scalded Skin Syndrome, Ireland, 2007 – preliminary outbreak report. ACTA ACUST UNITED AC 2007; 12:E070614.5. [PMID: 17868578 DOI: 10.2807/esw.12.24.03220-en] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Between February and May 2007, five confirmed cases of Staphylococcal Scalded Skin Syndrome (SSSS) were identified in full-term healthy infants born at a maternity unit in Ireland (hospital A). This hospital serves a population of 340,000 people, with over 4,500 babies born annually.
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Affiliation(s)
- N H O'Connell
- Department of Medical Microbiology, Mid-Western Regional Hospital, Limerick, Ireland
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Monecke S, Berger-Bächi B, Coombs G, Holmes A, Kay I, Kearns A, Linde HJ, O'Brien F, Slickers P, Ehricht R. Comparative genomics and DNA array-based genotyping of pandemic Staphylococcus aureus strains encoding Panton-Valentine leukocidin. Clin Microbiol Infect 2007; 13:236-49. [PMID: 17391377 DOI: 10.1111/j.1469-0691.2006.01635.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Within the last few years, methicillin-resistant Staphylococcus aureus (MRSA) strains encoding Panton-Valentine leukocidin (PVL) have emerged and spread worldwide. This epidemic can be attributed to a small number of distinct clones. The present study used a novel assay, based on multiplex linear DNA amplification and subsequent microarray hybridisation, to simultaneously detect all relevant exotoxins, antimicrobial resistance determinants and the allelic variants of agr. The genes of the staphylococcal exotoxin-like (set) locus were also included for typing purposes. This assay, together with multilocus sequence typing (MLST) and spa typing, was applied to 56 clinical isolates and reference strains representing all major pandemic PVL-MRSA lineages, as well as to phylogenetically-related strains and putative ancestors. Array hybridisation results allowed the assignment of isolates to clonal groups, which were in accordance with MLST and spa typing data. Ten distinct clonal groups of PVL-MRSA (ST1, ST5, ST8, ST22, ST30, ST59/359, ST80/583, ST88, ST93 and ST152), including 12 MLST types, were identified and analysed with regard to resistance determinants and genes coding for exotoxins. The array hybridisation data confirmed that pandemic PVL-positive strains originate from very diverse genetic backgrounds, and provided insights into the evolution of some lineages. The DNA microarray technique provides a valuable epidemiological tool for the detailed characterisation of clinical isolates and comparison of strains at a global level.
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Affiliation(s)
- S Monecke
- Institute for Medical Microbiology and Hygiene, Faculty of Medicine Carl Gustav Carus, Technical University of Dresden, Dresden, Germany.
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Clark J, Archibald J, Kearns A, Barnass S, Kyi M. P1323 Who's carrying MRSA? Prevalence of MRSA amongst staff at a district general hospital and associated risk factors. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71163-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Otter J, Klein J, Watts T, Kearns A, French G. P1324 Control of an outbreak of an unusual ciprofioxacin-susceptible variant of methicillin-resistant Staphylococcus aureus EMRSA-15 on a neonatal unit. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71164-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Petticrew M, Cummins S, Ferrell C, Findlay A, Higgins C, Hoy C, Kearns A, Sparks L. Natural experiments: an underused tool for public health? Public Health 2006; 119:751-7. [PMID: 15913681 DOI: 10.1016/j.puhe.2004.11.008] [Citation(s) in RCA: 188] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2004] [Revised: 10/29/2004] [Accepted: 11/28/2004] [Indexed: 11/17/2022]
Abstract
Policymakers and public health researchers alike have demanded better evidence of the effects of interventions on health inequalities. These calls have been repeated most recently in the UK in the final Wanless report, which spoke of the "almost complete lack of an evidence base on the cost-effectiveness of public health interventions", and pointed more generally to the limited evidence base for public health policy and practice. Wanless and others have suggested that the gaps may be partially filled by exploiting the opportunities offered by "natural experiments", such as changes in employment opportunities, housing provision, or cigarette pricing. Natural experiments have an important contributions to make within the health inequalities agenda. First, they can play an important role in investigating the determinants of health inequalities. Second, they can assist in the identification of effective interventions, an area where it is widely acknowledged that the evidence-base is currently sparsely populated. This paper discusses some of the benefits and limitations of using this type of evidence, drawing on two ongoing quasi-experimental studies as examples.
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Affiliation(s)
- M Petticrew
- MRC Social and Public Health Sciences Unit, University of Glasgow, 4 Lilybank Gardens, Glasgow G12 8RZ, UK.
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Preston AJ, Kearns A, Barber MW, Gosney MA. The knowledge of healthcare professionals regarding elderly persons' oral care. Br Dent J 2006; 201:293-5; discussion 289; quiz 304. [PMID: 16960615 DOI: 10.1038/sj.bdj.4813973] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2006] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The aim of this study was to compare the knowledge and views of nursing staff on both acute elderly care and rehabilitation wards regarding elderly persons' oral care with that of carers in nursing homes. SUBJECTS One hundred nurses working on acute, sub-acute and rehabilitation wards for elderly people (Group 1) and 75 carers in nursing homes (Group 2) were surveyed. DESIGN A semi-structured questionnaire. RESULTS Similar percentages of each group of nurses were registered with a dentist (86% and 88% respectively), although more hospital-based nurses were anxious about dental treatment compared with the nursing home group (40% and 28% respectively). More carers in nursing homes gave regular advice about oral care than the hospital-based nurses (54% and 43% respectively). Eighteen per cent of each group thought that edentulous individuals did not require regular oral care. Eighty-five per cent of hospital-based nurses and 95% of nursing home carers incorrectly thought that dentures were 'free' on the NHS. Although trends were observed between the two groups, no comparisons were statistically significant (Chi-square; level p < 0.05). CONCLUSIONS Deficiencies exist in the knowledge of health care workers both in hospital and in the community setting, although the latter were less knowledgeable but more likely to give advice to older people.
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Affiliation(s)
- A J Preston
- Restorative Dentistry, Liverpool University Dental Hospital, Pembroke Place, Liverpool, L3 5PS.
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Abstract
Community associated methicillin resistant Staphylococcus aureus (CA-MRSA) is an emerging pathogen typically associated with skin and soft tissue infection, with occasional reports of fatality in previously healthy children and young adults. We report a case of invasive CA-MRSA and highlight the potential impact of such infections on empirical treatment of staphylococcal infections.
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Affiliation(s)
- D Jeyaratnam
- Guy's and St Thomas' NHS Foundation Trust, London, UK.
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50
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Jørgensen HJ, Mørk T, Caugant DA, Kearns A, Rørvik LM. Genetic variation among Staphylococcus aureus strains from Norwegian bulk milk. Appl Environ Microbiol 2005; 71:8352-61. [PMID: 16332822 PMCID: PMC1317405 DOI: 10.1128/aem.71.12.8352-8361.2005] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2005] [Accepted: 08/27/2005] [Indexed: 11/20/2022] Open
Abstract
Strains of Staphylococcus aureus obtained from bovine (n = 117) and caprine (n = 114) bulk milk were characterized and compared with S. aureus strains from raw-milk products (n = 27), bovine mastitis specimens (n = 9), and human blood cultures (n = 39). All isolates were typed by pulsed-field gel electrophoresis (PFGE). In addition, subsets of isolates were characterized using multilocus sequence typing (MLST), multiplex PCR (m-PCR) for genes encoding nine of the staphylococcal enterotoxins (SE), and the cloverleaf method for penicillin resistance. A variety of genotypes were observed, and greater genetic diversity was found among bovine than caprine bulk milk isolates. Certain genotypes, with a wide geographic distribution, were common to bovine and caprine bulk milk and may represent ruminant-specialized S. aureus. Isolates with genotypes indistinguishable from those of strains from ruminant mastitis were frequently found in bulk milk, and strains with genotypes indistinguishable from those from bulk milk were observed in raw-milk products. This indicates that S. aureus from infected udders may contaminate bulk milk and, subsequently, raw-milk products. Human blood culture isolates were diverse and differed from isolates from other sources. Genotyping by PFGE, MLST, and m-PCR for SE genes largely corresponded. In general, isolates with indistinguishable PFGE banding patterns had the same SE gene profile and isolates with identical SE gene profiles were placed together in PFGE clusters. Phylogenetic analyses agreed with the division of MLST sequence types into clonal complexes, and isolates within the same clonal complex had the same SE gene profile. Furthermore, isolates within PFGE clusters generally belonged to the same clonal complex.
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Affiliation(s)
- H J Jørgensen
- Department of Food and Feed Hygiene, National Veterinary Institute, P.O. Box 8156 Dep., 0033 Oslo, Norway.
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