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Nguema Moure PA, Nzamba Maloum M, Manouana GP, Laclong Lontchi RA, Mbong Ngwese M, Edoa JR, Fréjus Zinsou J, Meulah B, Mahmoudou S, N'noh Dansou EM, Josiane Honkpehedji Y, Romeo Adegbite B, Agnandji ST, Ramharter M, Lell B, Borrmann S, Kremsner PG, Dejon-Agobé JC, Adegnika AA. A randomized assessors-blind clinical trial to evaluate the safety and the efficacy of albendazole alone and in combination with mebendazole or pyrantel for the treatment of Trichuris trichiura infection in school-aged children in Lambaréné and surroundings. Antimicrob Agents Chemother 2024; 68:e0121123. [PMID: 38563751 PMCID: PMC11064543 DOI: 10.1128/aac.01211-23] [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: 09/19/2023] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
Helminthiasis remains a public health issue in endemic areas. Various drugs have been proposed to improve efficacy against helminths. The study aimed to assess the safety and efficacy of three different anthelmintic combinations to treat Trichuris trichiura infections. We conducted a randomized assessors-blind clinical trial involving children aged 2-17 years with T. trichiura. Participants were randomly assigned to one of three treatment arms. On the first and third days, all participants got albendazole 400 mg, and on the second day, albendazole (arm A), mebendazole 500 mg (arm B), or pyrantel 125 mg/kg (arm C). We assessed treatment efficacy using the cure rate (CR) and egg reduction rate (ERR) at 3 and 6 weeks post-treatment. At 3 weeks post-treatment, ERR and CR were highest in study arm A [ERR = 94%, 95% confidence interval (CI): 92-95; CR = 71%; 95% CI: 58-81] compared to the B and C arms. Decrease in ERR was significant only for arm B versus arm A (P-value <0.001); decrease in ERR was significant for arms B and C (P-value <0.001). No statistical difference was observed in CR when comparing arms A and B (P-value =1.00) and C (P-value =0.27). At 6 weeks, a decrease in ERR was observed in three arms, significant only for arm C, 81% (95% CI: 78-83). A significant increase in egg counts was observed between 3 and 6 weeks post-treatment. All treatments were safe with mild adverse events. Albendazole 400 mg/day (arm A) showed the highest efficacy against trichuriasis. Nonetheless, this treatment regimen was able to cure half of the treated individuals highlighting concerns about controlling the transmission of T. trichiura.CLINICAL TRIALRegistered at ClinicalTrials.gov (NCT04326868).
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Affiliation(s)
- Paul Alvyn Nguema Moure
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Ecole Doctorale Régionale d’Afrique Centrale en Infectiologie Tropicale de Franceville, Franceville, Gabon
| | | | - Gédéon Prince Manouana
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Tübingen, Germany
| | | | | | | | - Jeannot Fréjus Zinsou
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Tübingen, Germany
| | - Brice Meulah
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | | | | | - Yabo Josiane Honkpehedji
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Bayode Romeo Adegbite
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Tübingen, Germany
| | - Selidji Todagbe Agnandji
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Tübingen, Germany
| | - Michael Ramharter
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine & I. Dep. of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Bertrand Lell
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine 1, Medical University of Vienna, Vienna, Austria
| | - Steffen Borrmann
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Tübingen, Germany
| | - Peter G. Kremsner
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Tübingen, Germany
| | | | - Ayôla Akim Adegnika
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Ecole Doctorale Régionale d’Afrique Centrale en Infectiologie Tropicale de Franceville, Franceville, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Tübingen, Germany
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
- German Center for Infection Research (DZIF), Tübingen, Germany
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Manouana GP, Kuk S, Linh LTK, Pallerla SR, Niendorf S, Kremsner PG, Adegnika AA, Velavan TP. Gut microbiota in vaccine naïve Gabonese children with rotavirus A gastroenteritis. Heliyon 2024; 10:e28727. [PMID: 38576575 PMCID: PMC10990958 DOI: 10.1016/j.heliyon.2024.e28727] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/06/2024] Open
Abstract
Background While the gut microbiome modulates the pathogenesis of enteric viruses, how infections caused by rotavirus A (RVA), with or without diarrhoea, alter the gut microbiota has been sparsely studied. Methods From a cohort of 224 vaccine naïve Gabonese children with and without diarrhoea (n = 177 and n = 67, respectively), 48 stool samples were analysed: (i) RVA with diarrhoea (n = 12); (ii) RVA without diarrhoea (n = 12); (iii) diarrhoea without RVA (n = 12); (iv) healthy controls without diarrhoea and RVA (n = 12). The 16S rRNA metabarcoding using Oxford Nanopore sequencing data was analysed for taxonomic composition, abundance, alpha and beta diversity, and metabolic pathways. Findings Alpha diversity showed that children with acute diarrhoea (with and without RVA infection), and children with acute diarrhoea without RVA had low microbial diversity compared to healthy children (p = 0.001 and p = 0.006, respectively). No significant differences observed when comparing children with RVA with or without diarrhoea. Beta diversity revealed high microbial heterogeneity in children without diarrhoea. Proteobacteria (68%) and Firmicutes (69%) were most common in the diarrhoea and non-diarrhoea groups, respectively. Proteobacteria (53%) were most common in children without RVA, while Firmicutes (55%) were most common with RVA. At the genus level, Escherichia (21%), Klebsiella (10%) and Salmonella (4%) were abundant in children with diarrhoea, while Blautia (11%), Clostridium (8%), Lachnoclostridium (6%) and Ruminococcus (5%) were abundant in children without diarrhoea. Metabolites involved in amino acid, carbohydrate, lipid, nucleotide, and vitamin metabolism were quantitatively altered. Interpretation Although host physiology dictates the intestinal milieu, diarrhoea per se can alter a balanced gut microbiota, whereas infectious diarrhoea disrupts the gut microbiome and reduces its diversity.
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Affiliation(s)
- Gédéon Prince Manouana
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Salih Kuk
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Le Thi Kieu Linh
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
- Vietnamese-German Center for Medical Research (VG-CARE), 10000, Hanoi, Viet Nam
| | | | - Sandra Niendorf
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Peter G. Kremsner
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Tübingen, Germany
| | - Ayola Akim Adegnika
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Tübingen, Germany
- Fondation pour la Recherche Scientifique, Cotonou, Benin
| | - Thirumalaisamy P. Velavan
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
- Vietnamese-German Center for Medical Research (VG-CARE), 10000, Hanoi, Viet Nam
- Faculty of Medicine, Duy Tan University, 50000, Da Nang, Viet Nam
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3
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Chhabra P, Tully DC, Mans J, Niendorf S, Barclay L, Cannon JL, Montmayeur AM, Pan CY, Page N, Williams R, Tutill H, Roy S, Celma C, Beard S, Mallory ML, Manouana GP, Velavan TP, Adegnika AA, Kremsner PG, Lindesmith LC, Hué S, Baric RS, Breuer J, Vinjé J. Emergence of Novel Norovirus GII.4 Variant. Emerg Infect Dis 2024; 30:163-167. [PMID: 38063078 PMCID: PMC10756382 DOI: 10.3201/eid3001.231003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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] [Indexed: 12/22/2023] Open
Abstract
We detected a novel GII.4 variant with an amino acid insertion at the start of epitope A in viral protein 1 of noroviruses from the United States, Gabon, South Africa, and the United Kingdom collected during 2017-2022. Early identification of GII.4 variants is crucial for assessing pandemic potential and informing vaccine development.
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Affiliation(s)
| | | | - Janet Mans
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Sandra Niendorf
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Leslie Barclay
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Jennifer L. Cannon
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Anna M. Montmayeur
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Chao-Yang Pan
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Nicola Page
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Rachel Williams
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Helena Tutill
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Sunando Roy
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Cristina Celma
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Stuart Beard
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Michael L. Mallory
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Gédéon Prince Manouana
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Thirumalaisamy P. Velavan
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Ayola Akim Adegnika
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Peter G. Kremsner
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Lisa C. Lindesmith
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Stéphane Hué
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Ralph S. Baric
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Judith Breuer
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
| | - Jan Vinjé
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Chhabra, L. Barclay, J.L. Cannon, A.M. Montmayeur, J. Vinjé)
- London School of Hygiene & Tropical Medicine, London, UK (D.C. Tully, S. Hué)
- University of Pretoria, Pretoria, South Africa (J. Mans, N. Page)
- Robert Koch Institut, Berlin, Germany (S. Niendorf)
- California Department of Public Health, Richmond, California, USA (C.-Y. Pan)
- National Institute for Communicable Diseases, Sandringham, South Africa (N. Page)
- UCL Great Ormond Street Institute of Child Health, London (R. Williams, H. Tutill, S. Roy, J. Breuer)
- UK Health Security Agency, London (C. Celma, S. Beard)
- University of North Carolina, Chapel Hill, North Carolina, USA (M.L. Mallory, L.C. Lindesmith, R.S. Baric)
- Universitätsklinikum Tübingen, Tübingen, Germany (G.P. Manouana, T.P. Velavan, A.A. Adegnika)
- Centre de Recherches Médicales de Lambaréné, Lambarene, Gabon (G.P. Manouana, A.A. Adegnika, P.G. Kremsner)
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam (T.P. Velavan)
- Duy Tan University, Da Nang, Vietnam (T.P. Velavan)
- German Center for Infection Research, Tübingen (A.A. Adegnika)
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4
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Manouana GP, Nguema-Moure PA, Tomazatos A, Maloum MN, Bock CT, Kremsner PG, Velavan TP, Adegnika AA, Niendorf S. RT-PCR-based assessment of the SD Bioline Rota/Adeno Antigen-based test in infants with and without diarrhea. Virol J 2023; 20:40. [PMID: 36864463 PMCID: PMC9981446 DOI: 10.1186/s12985-023-01999-z] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/23/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Rotavirus A (RVA) infections remain a major cause of severe acute diarrhea affecting children worldwide. To date, rapid diagnostic tests (RDT) are widely used to detect RVA. However, paediatricians question whether the RDT can still detect the virus accurately. Therefore, this study aimed to evaluate the performance of the rapid rotavirus test in comparison to the one-step RT-qPCR method. METHODS A cross-sectional study was conducted in Lambaréné, Gabon, from April 2018 to November 2019. Stool samples were collected from children under 5 years of age with diarrhoea or a history of diarrhoea within the last 24 h, and from asymptomatic children from the same communities. All stool samples were processed and analysed using the SD BIOLINE Rota/Adeno Ag RDT against a quantitative reverse transcription PCR (RT-qPCR), which is considered the gold standard. RESULTS For a total of 218 collected stool samples, the overall sensitivity of the RDT was 46.46% (confidence interval (CI) 36.38-56.77), with a specificity of 96.64% (CI 91.62-99.08) compared to one-step RT-qPCR. After confirming the presence or absence of RVA gastroenteritis, the RDT showed suitable results in detecting rotavirus A-associated disease, with a 91% concordance with the RT-qPCR. Furthermore, the performance of this test varied when correlated with seasonality, symptoms, and rotavirus genotype. CONCLUSION This RDT showed high sensitivity and was suitable for the detection of RVA in patients with RVA gastroenteritis, although some asymptomatic RVA shedding was missed by RT-qPCR. It could be a useful diagnostic tool, especially in low-income countries.
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Affiliation(s)
- Gédéon Prince Manouana
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany. .,Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.
| | | | - Alexandru Tomazatos
- Department Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | - C-Thomas Bock
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,German Center for Infection Research (DZIF), Tübingen, Germany
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Akim Ayola Adegnika
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,German Center for Infection Research (DZIF), Tübingen, Germany.,Fondation Pour La Recherche Scientifique, Cotonou, Bénin
| | - Sandra Niendorf
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany.
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5
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Badr HS, Colston JM, Nguyen NLH, Chen YT, Burnett E, Ali SA, Rayamajhi A, Satter SM, Van Trang N, Eibach D, Krumkamp R, May J, Adegnika AA, Manouana GP, Kremsner PG, Chilengi R, Hatyoka L, Debes AK, Ateudjieu J, Faruque ASG, Hossain MJ, Kanungo S, Kotloff KL, Mandomando I, Nisar MI, Omore R, Sow SO, Zaidi AKM, Lambrecht N, Adu B, Page N, Platts-Mills JA, Mavacala Freitas C, Pelkonen T, Ashorn P, Maleta K, Ahmed T, Bessong P, Bhutta ZA, Mason C, Mduma E, Olortegui MP, Peñataro Yori P, Lima AAM, Kang G, Humphrey J, Ntozini R, Prendergast AJ, Okada K, Wongboot W, Langeland N, Moyo SJ, Gaensbauer J, Melgar M, Freeman M, Chard AN, Thongpaseuth V, Houpt E, Zaitchik BF, Kosek MN. Spatiotemporal variation in risk of Shigella infection in childhood: a global risk mapping and prediction model using individual participant data. Lancet Glob Health 2023; 11:e373-e384. [PMID: 36796984 PMCID: PMC10020138 DOI: 10.1016/s2214-109x(22)00549-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 08/02/2022] [Revised: 11/18/2022] [Accepted: 12/14/2022] [Indexed: 02/16/2023]
Abstract
BACKGROUND Diarrhoeal disease is a leading cause of childhood illness and death globally, and Shigella is a major aetiological contributor for which a vaccine might soon be available. The primary objective of this study was to model the spatiotemporal variation in paediatric Shigella infection and map its predicted prevalence across low-income and middle-income countries (LMICs). METHODS Individual participant data for Shigella positivity in stool samples were sourced from multiple LMIC-based studies of children aged 59 months or younger. Covariates included household-level and participant-level factors ascertained by study investigators and environmental and hydrometeorological variables extracted from various data products at georeferenced child locations. Multivariate models were fitted and prevalence predictions obtained by syndrome and age stratum. FINDINGS 20 studies from 23 countries (including locations in Central America and South America, sub-Saharan Africa, and south and southeast Asia) contributed 66 563 sample results. Age, symptom status, and study design contributed most to model performance followed by temperature, wind speed, relative humidity, and soil moisture. Probability of Shigella infection exceeded 20% when both precipitation and soil moisture were above average and had a 43% peak in uncomplicated diarrhoea cases at 33°C temperatures, above which it decreased. Compared with unimproved sanitation, improved sanitation decreased the odds of Shigella infection by 19% (odds ratio [OR]=0·81 [95% CI 0·76-0·86]) and open defecation decreased them by 18% (OR=0·82 [0·76-0·88]). INTERPRETATION The distribution of Shigella is more sensitive to climatological factors, such as temperature, than previously recognised. Conditions in much of sub-Saharan Africa are particularly propitious for Shigella transmission, although hotspots also occur in South America and Central America, the Ganges-Brahmaputra Delta, and the island of New Guinea. These findings can inform prioritisation of populations for future vaccine trials and campaigns. FUNDING NASA, National Institutes of Health-The National Institute of Allergy and Infectious Diseases, and Bill & Melinda Gates Foundation.
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Affiliation(s)
- Hamada S Badr
- Department of Earth and Planetary Sciences, Johns Hopkins Krieger School of Arts and Sciences, Baltimore, MA, USA
| | - Josh M Colston
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, VA, USA
| | | | - Yen Ting Chen
- Department of Emergency Medicine, Chi-Mei Medical Center, Tainan, Taiwan
| | - Eleanor Burnett
- Division of Viral Diseases, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Syed Asad Ali
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Ajit Rayamajhi
- Department of Pediatrics, National Academy of Medical Sciences, Kanti Children's Hospital, Kathmandu, Nepal
| | - Syed M Satter
- Programme for Emerging Infections, Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | | | - Daniel Eibach
- Department of Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany
| | - Ralf Krumkamp
- Department of Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany
| | - Jürgen May
- Department of Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany
| | - Ayola Akim Adegnika
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
| | | | | | - Roma Chilengi
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Luiza Hatyoka
- Enteric diseases and Vaccines Unit, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Amanda K Debes
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Jerome Ateudjieu
- Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang, Cameroon; Department of Health Research, M A SANTE (Meileur Acces aux Soins en Santé), Yaoundé, Cameroon; Division of Health Operations Research, Cameroon Ministry of Public Health, Yaoundé, Cameroon
| | - Abu S G Faruque
- Centre for Nutrition & Food Security, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - M Jahangir Hossain
- Medical Research Council Unit, The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Suman Kanungo
- National Institute of Cholera and Enteric Diseases, Kolkota, India
| | - Karen L Kotloff
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | - M Imran Nisar
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Richard Omore
- Kenya Medical Research Institute, Center for Global Health Research, Kisumu, Nyanza, Kenya
| | - Samba O Sow
- Centre pour le Développement des Vaccins, Mali, Bamako, Mali
| | - Anita K M Zaidi
- Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Nathalie Lambrecht
- Institute of Public Health, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; Research Department 2, Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, Potsdam, Germany
| | - Bright Adu
- Department of Immunology, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - Nicola Page
- Centre for Enteric Diseases, National Institute for Communicable Diseases, Pretoria, South Africa
| | - James A Platts-Mills
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, VA, USA
| | | | - Tuula Pelkonen
- New Children's Hospital, Pediatric Research Center and Helsinki University Hospital, Helsinki, Finland
| | - Per Ashorn
- Centre for Child, Adolescent, and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Kenneth Maleta
- College of Medicine, University of Malawi, Blantyre, Malawi
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Pascal Bessong
- HIV/AIDS & Global Health Research Programme, University of Venda, Thohoyandou, Limpopo, South Africa
| | - Zulfiqar A Bhutta
- Center of Excellence in Women and Child Health, Aga Khan University, Karachi, Pakistan
| | - Carl Mason
- Department of Enteric Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | | | | | - Pablo Peñataro Yori
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Aldo A M Lima
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Gagandeep Kang
- Department of Gastrointestinal Sciences, Christian Medical College, Vellore, India
| | - Jean Humphrey
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Robert Ntozini
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | | | - Kazuhisa Okada
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Warawan Wongboot
- Department of Medical Sciences, National Institute of Health, Nonthaburi, Thailand
| | - Nina Langeland
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Sabrina J Moyo
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - James Gaensbauer
- Center for Global Health, Department of Epidemiology, Colorado School of Public Health, Aurora, CO, USA
| | - Mario Melgar
- Pediatric Infectious Diseases, Hospital Roosevelt, Guatemala City, Guatemala
| | - Matthew Freeman
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, 30322, GA, USA
| | - Anna N Chard
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, 30322, GA, USA
| | - Vonethalom Thongpaseuth
- Laboratory and Treatment Unit, Center for Malariology, Parasitology, and Entomology, Ministry of Health, Vientiane, Lao PDR
| | - Eric Houpt
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Benjamin F Zaitchik
- Department of Earth and Planetary Sciences, Johns Hopkins Krieger School of Arts and Sciences, Baltimore, MA, USA.
| | - Margaret N Kosek
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, VA, USA
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6
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Manouana GP, Maloum MN, Bikangui R, Oye Bingono SO, Ondo GN, Honkpehedji JY, Rossatanga EG, Assoumou SZ, Pallerla SR, Rachakonda S, Ndong RM, Lekana-Douki JB, Siawaya JFD, Borrmann S, Kremsner PG, Lell B, Velavan TP, Adegnika AA. Emergence of B.1.1.318 SARS-CoV-2 viral lineage and high incidence of alpha B.1.1.7 variant of concern in Republic of Gabon. Int J Infect Dis 2021; 114:151-154. [PMID: 34742926 PMCID: PMC8563502 DOI: 10.1016/j.ijid.2021.10.057] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/09/2021] [Accepted: 10/29/2021] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Variants of concern (VOCs) associated with relatively high transmissibility appear to be spreading rapidly in Gabon. Therefore, it is imperative to understand the distribution of several variants of concern in the population, which could have implications for transmissibility and vaccine efficacy. METHODS Between February and May 2021, SARS-CoV-2 genomes were sequenced using the Oxford nanopore MinION method and the respective genome diversity was elucidated. Phylogenetic analysis was performed and genomes were classified using pangolin lineages. RESULTS The results highlight the increase (46%) of the alpha variant of concern (B.1.1.7) in the Gabonese population over the study period. In addition, an increase (31%) in the B.1.1.318 lineage, which is associated with high transmission and impaired vaccine efficacy (D614G+E484K+Y144del), was detected. CONCLUSION With the second wave ongoing, our findings highlight the need for surveillance of the SARS-CoV-2 genome in the Republic of Gabon and should provide useful guidance to policy makers in selecting an appropriate vaccine for the population.
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Affiliation(s)
- Gédéon Prince Manouana
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon; Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
| | | | - Rodrigue Bikangui
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon; Ecole doctorale de Franceville, Franceville, Gabon
| | | | | | | | | | - Samira Zoa Assoumou
- Laboratoire Professeur Daniel Gahouma, Libreville, Gabon; Département de Bactériologie-Virologie, Université des Sciences de la Santé, Libreville, Gabon
| | | | | | | | | | | | - Steffen Borrmann
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon; Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany; German Center for Infection Research (DZIF), Tübingen, Germany
| | - Peter G Kremsner
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon; Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany; German Center for Infection Research (DZIF), Tübingen, Germany
| | - Bertrand Lell
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon; Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany; Medical University of Vienna, Vienna, Austria
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany; Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam
| | - Ayola Akim Adegnika
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon; Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany; German Center for Infection Research (DZIF), Tübingen, Germany; Fondation pour la Recherche Scientifique, Cotonou, Bénin.
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7
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Manouana GP, Niendorf S, Tomazatos A, Mbong Ngwese M, Nzamba Maloum M, Nguema Moure PA, Bingoulou Matsougou G, Ategbo S, Rossatanga EG, Bock CT, Borrmann S, Mordmüller B, Eibach D, Kremsner PG, Velavan TP, Adegnika AA. Molecular surveillance and genetic divergence of rotavirus A antigenic epitopes in Gabonese children with acute gastroenteritis. EBioMedicine 2021; 73:103648. [PMID: 34706308 PMCID: PMC8551588 DOI: 10.1016/j.ebiom.2021.103648] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 01/21/2023] Open
Abstract
Background Rotavirus A (RVA) causes acute gastroenteritis in children <5 years of age in sub-Saharan Africa. In this study, we described the epidemiology and genetic diversity of RVA infecting Gabonese children and examined the antigenic variability of circulating strains in relation to available vaccine strains to maximize the public health benefits of introducing rotavirus vaccine through the Expanded Programme on Immunization (EPI) in Gabon. Methods Stool samples were collected consecutively between April 2018 and November 2019 from all hospitalized children <5 years with gastroenteritis and community controls without gastroenteritis. Children were tested for rotavirus A by quantitative RT-PCR and subsequently sequenced to identify circulating rotavirus A genotypes in the most vulnerable population. The VP7 and VP4 (VP8*) antigenic epitopes were mapped to homologs of vaccine strains to assess structural variability and potential impact on antigenicity. Findings Infections were mostly acquired during the dry season. Rotavirus A was detected in 98/177 (55%) hospitalized children with gastroenteritis and 14/67 (21%) of the control children. The most common RVA genotypes were G1 (18%), G3 (12%), G8 (18%), G9 (2%), G12 (25%), with G8 and G9 reported for the first time in Gabon. All were associated either with P[6] (31%) or P[8] (38%) genotypes. Several non-synonymous substitutions were observed in the antigenic epitopes of VP7 (positions 94 and 147) and VP8* (positions 89, 116, 146 and 150), which may modulate the elicited immune responses. Interpretation This study contributes to the epidemiological surveillance of rotavirus A required before the introduction of rotavirus vaccination in the EPI for Gabonese children.
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Affiliation(s)
- Gédéon Prince Manouana
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, Tübingen 72074, Germany; Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon
| | - Sandra Niendorf
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Alexandru Tomazatos
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, Tübingen 72074, Germany; Department of Arbovirology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | | | | | - Gedeon Bingoulou Matsougou
- Département de Pédiatrie, Faculté de Médecine, Université des Sciences de la Santé (USS), BP 4009, Libreville, Gabon
| | - Simon Ategbo
- Département de Pédiatrie, Faculté de Médecine, Université des Sciences de la Santé (USS), BP 4009, Libreville, Gabon
| | | | - C Thomas Bock
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, Tübingen 72074, Germany; Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Steffen Borrmann
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, Tübingen 72074, Germany; Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon; German Center for Infection Research (DZIF), Tübingen, Germany
| | - Benjamin Mordmüller
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, Tübingen 72074, Germany; Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon; Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, the Netherland
| | - Daniel Eibach
- Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, Tübingen 72074, Germany; Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon; German Center for Infection Research (DZIF), Tübingen, Germany
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, Tübingen 72074, Germany; Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Viet Nam.
| | - Ayola Akim Adegnika
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, Tübingen 72074, Germany; Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon; Centre Hospitalier Régional Georges Rawiri de Lambaréné, Lambaréné, Gabon; Fondation pour la Recherche Scientifique, Cotonou, Bénin.
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8
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Abe H, Ushijima Y, Bikangui R, Zoa-Assoumou S, Ondo GN, Manouana GP, More A, Skarwan E, Yali-Assy-Oyamli Y, Ndeboko B, Myrabelle Avome Houechenou R, Djoba Siawaya JF, Lell B, Adegnika AA, Yasuda J. Unrecognized introduction of SARS-CoV-2 variants of concern to Central Africa: Import and local transmission of B.1.1.7 in Gabon in the very early stage of the variant spread to the African continent. J Med Virol 2021; 93:6054-6058. [PMID: 34185327 PMCID: PMC8426813 DOI: 10.1002/jmv.27164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022]
Abstract
The rapid spread of the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) variant of concern with higher infectivity has already resulted in the enormous increase in infection cases worldwide. We report an unrecognized introduction of the variant B.1.1.7 in Gabon in December 2020, which was the initial phase of the variant introduction to Africa. The B.1.1.7 variant was also detected in a hospitalized patient in January 2021, indicating a rapid spread of the variant in Gabon since its first detection. Phylogenetic analysis revealed that the detected B.1.1.7 variants originated from the distinct regions, strongly suggesting that the B.1.1.7 variant had been repeatedly introduced to Gabon since December 2020. These results provide insights on the unrecognized risks of infections with variants of concern, and show the necessity to conduct continuous genomic monitoring for immediate alert and control of novel SARS‐CoV‐2 variant infections.
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Affiliation(s)
- Haruka Abe
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Yuri Ushijima
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | | | - Samira Zoa-Assoumou
- Université des Sciences de la Santé, Libreville, Gabon.,Laboratoire Professeur Daniel GAHOUMA, Libreville, Gabon
| | | | | | - Ayong More
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
| | - Emilio Skarwan
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
| | | | - Bénédicte Ndeboko
- Université des Sciences de la Santé, Libreville, Gabon.,Centre Hospitalier Universitaire Mère-enfant Fondation Jeanne EBORI, Libreville, Gabon
| | | | | | - Bertrand Lell
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Division of Infectious Diseases and Tropical Medicine, Medical University of Vienna, Vienna, Austria
| | - Ayola Akim Adegnika
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,German Center for Infection Research, Tübingen, Germany
| | - Jiro Yasuda
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.,National Research Center for the Control and Prevention of Infectious Diseases (CCPID), Nagasaki University, Nagasaki, Japan
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9
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Manouana GP, Byrne N, Mbong Ngwese M, Nguema Moure A, Hofmann P, Bingoulou Matsougou G, Lotola Mougeni F, Nnoh Dansou E, Agbanrin MD, Mapikou Gouleu CS, Ategbo S, Zinsou JF, Adegbite BR, Edoa JR, Kremsner PG, Mordmüller B, Eibach D, McCall M, Abraham A, Borrmann S, Adegnika AA. Prevalence of Pathogens in Young Children Presenting to Hospital with Diarrhea from Lambaréné, Gabon. Am J Trop Med Hyg 2021; 105:254-260. [PMID: 34232911 DOI: 10.4269/ajtmh.20-1290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 02/08/2021] [Indexed: 11/07/2022] Open
Abstract
Diarrheal disease is the second most frequent cause of mortality in children younger than 5 years worldwide, causing more than half a million deaths each year. Our knowledge of the epidemiology of potentially pathogenic agents found in children suffering from diarrhea in sub-Saharan African countries is still patchy, and thereby hinders implementation of effective preventative interventions. The lack of cheap, easy-to-use diagnostic tools leads to mostly symptomatic and empirical case management. An observational study with a total of 241 participants was conducted from February 2017 to August 2018 among children younger than 5 years with diarrhea in Lambaréné, Gabon. Clinical and demographic data were recorded, and a stool sample was collected. The samples were examined using a commercial rapid immunoassay to detect Rotavirus/adenovirus, conventional bacterial culture for Salmonella spp., and multiplex real-time PCR for Cryptosporidium spp., Giardia lamblia, Cyclospora cayetanensis, enterotoxigenic Escherichia coli (ETEC), and enteroinvasive Escherichia coli (EIEC)/Shigella. At least one infectious agent was present in 121 of 241 (50%) samples. The most frequently isolated pathogens were EIEC/Shigella and ETEC (54/179; 30.2% and 44/179; 24.6%, respectively), followed by G. lamblia (33/241; 13.7%), Cryptosporidium spp. (31/241; 12.9%), and Rotavirus (23/241; 9.5%). Coinfection with multiple pathogens was observed in 33% (40/121) of the positive cases with EIEC/Shigella, ETEC, and Cryptosporidium spp. most frequently identified. Our results provide new insight into the possible causes of diarrheal disease in the Moyen-Ogooué region of Gabon and motivate further research on possible modes of infection and targeted preventive measures.
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Affiliation(s)
- Gédéon Prince Manouana
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon.,2Institut für Tropenmedizin, Eberhad Karls Universität Tübingen, Tübingen, Germany
| | - Natalie Byrne
- 2Institut für Tropenmedizin, Eberhad Karls Universität Tübingen, Tübingen, Germany
| | | | | | - Philipp Hofmann
- 3German Center for Infection Research (DZIF), Hamburg-Borstel-Lübeck-Riems, Greifswald - Insel Riems, Germany
| | - Gedeon Bingoulou Matsougou
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon.,4Département de Pédiatrie, Faculté de Médecine, Université des Sciences de la Santé (USS), Libreville, Gabon
| | | | | | | | | | - Simon Ategbo
- 4Département de Pédiatrie, Faculté de Médecine, Université des Sciences de la Santé (USS), Libreville, Gabon
| | | | - Bayode Romeo Adegbite
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon.,5Department of Infectious Diseases, Center of Tropical Medicine and Travel Medicine, Amsterdam University Medical Centers, Location Amsterdam, Amsterdam, The Netherlands.,6Amsterdam Infection and Immunity, Amsterdam Public Health, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Peter Gottfried Kremsner
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon.,2Institut für Tropenmedizin, Eberhad Karls Universität Tübingen, Tübingen, Germany.,7German Center for Infection Research (DZIF), Tübingen, Germany
| | - Benjamin Mordmüller
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon.,2Institut für Tropenmedizin, Eberhad Karls Universität Tübingen, Tübingen, Germany.,7German Center for Infection Research (DZIF), Tübingen, Germany
| | - Daniel Eibach
- 3German Center for Infection Research (DZIF), Hamburg-Borstel-Lübeck-Riems, Greifswald - Insel Riems, Germany.,8Infectious Disease Epidemiology, Bernhard Nocht Insitute for Tropical Medicine, Hamburg, Germany
| | - Matthew McCall
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon.,2Institut für Tropenmedizin, Eberhad Karls Universität Tübingen, Tübingen, Germany.,9Department of Medical Microbiology, Radboudumc, Nijmegen, The Netherlands
| | - Alabi Abraham
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon
| | - Steffen Borrmann
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon.,2Institut für Tropenmedizin, Eberhad Karls Universität Tübingen, Tübingen, Germany.,7German Center for Infection Research (DZIF), Tübingen, Germany
| | - Ayola Akim Adegnika
- 1Centre de Recherche Médicales de Lambaréné, Lambaréné, Gabon.,2Institut für Tropenmedizin, Eberhad Karls Universität Tübingen, Tübingen, Germany.,7German Center for Infection Research (DZIF), Tübingen, Germany
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10
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Zoa-Assoumou S, Ndeboko B, Manouana GP, Houechenou RMA, Bikangui R, Mveang-Nzoghe A, Ondo GN, Mbongo-Kama E, Lell B, Abe H, Ushijima Y, Antchouey AM, Yasuda J, Adegnika AA, Siawaya JFD. SARS-CoV-2 emerging variants in Africa: view from Gabon. Lancet Microbe 2021; 2:e349. [PMID: 34124702 PMCID: PMC8186850 DOI: 10.1016/s2666-5247(21)00125-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Samira Zoa-Assoumou
- Département de Bactériologie-Virologie, Université des Sciences de la Santé, Libreville, Gabon.,Laboratoire Professeur Daniel Gahouma, Libreville, Gabon
| | - Bénédicte Ndeboko
- Département de Biologie Cellulaire et Biologie Moléculaire, Université des Sciences de la Santé, Libreville, Gabon.,Centre Hospitalier Universitaire Mère-Enfant Fondation Jeanne Ebori, Libreville, Gabon
| | - Gédéon Prince Manouana
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
| | | | | | | | | | | | - Bertrand Lell
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Medical University of Vienna, Vienna, Austria
| | - Haruka Abe
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Yuri Ushijima
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | | | - Jiro Yasuda
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Ayola Akim Adegnika
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,German Center for Infection Research, Tübingen, Germany
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11
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Remppis J, Verheyden A, Bustinduy AL, Heller T, García-Tardón N, Manouana GP, Obiang R, Adegnika AA, Grobusch MP, Ramharter M, Joekes E, Bélard S. Focused Assessment with Sonography for Urinary Schistosomiasis (FASUS)-pilot evaluation of a simple point-of-care ultrasound protocol and short training program for detecting urinary tract morbidity in highly endemic settings. Trans R Soc Trop Med Hyg 2021; 114:38-48. [PMID: 31735956 DOI: 10.1093/trstmh/trz101] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 03/18/2019] [Revised: 08/19/2019] [Accepted: 09/05/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Urogenital schistosomiasis (UGS) causes inflammation and fibrosis of the urinary tract. In resource-limited settings, affordable tools for morbidity assessment in clinical care are needed. Point-of-care ultrasound has not yet been validated for UGS-related pathology. METHODS We developed a protocol for Focused Assessment with Sonography for Urinary Schistosomiasis (FASUS), assessing pathology of the bladder wall, ureters and kidneys. Following standardized training, two clinicians performed FASUS on children and adults with hematuria in Lambaréné, Gabon. Recorded ultrasound clips were remotely reviewed by two ultrasound experts as a diagnostic reference. RESULTS In 2015 and 2016, scans were performed in 118 patients. The image quality was sufficient in 90% of bladder views and more than 97% of kidney views. UGS-compatible pathology was detected in 51/118 (43%) by the operator and in 46/107 (43%) by the experts among baseline scans of sufficient quality. Inter-rater agreement between operators and experts was very good (κ > 0.8) for hydronephrosis and good (κ > 0.6) for bladder wall thickening. CONCLUSIONS FASUS is a promising clinical, point-of-care tool for detecting UGS-related urinary tract morbidity in symptomatic patients. Based on larger validation studies, appropriate diagnostic and therapeutic algorithms for the use of FASUS should be established.
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Affiliation(s)
- J Remppis
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon.,Department of Haematology and Oncology, Children's University Hospital, Hoppe-Seyler-Straße 1, 72076 Tübingen, Germany.,Institute of Tropical Medicine, University of Tübingen, Wilhelmstraße 27, 72074 Tübingen, Germany
| | - A Verheyden
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon
| | - A L Bustinduy
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - T Heller
- Lighthouse Clinic, Kamuzu Central Hospital, Area 33 Mzimba Street. P.O. Box 106, Lilongwe, Malawi
| | - N García-Tardón
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon.,Clinical Chemistry Laboratory, Isala, Dr. van Heesweg 2, 8025 AB Zwolle, the Netherlands
| | - G P Manouana
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon.,Institute of Tropical Medicine, University of Tübingen, Wilhelmstraße 27, 72074 Tübingen, Germany
| | - R Obiang
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon
| | - A A Adegnika
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon.,Institute of Tropical Medicine, University of Tübingen, Wilhelmstraße 27, 72074 Tübingen, Germany.,German Center for Infection Research, Wilhelmstraße 27, 72074 Tübingen, Germany
| | - M P Grobusch
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon.,Institute of Tropical Medicine, University of Tübingen, Wilhelmstraße 27, 72074 Tübingen, Germany.,Center of Tropical Medicine and Travel Medicine, Amsterdam University Medical Centers, location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - M Ramharter
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon.,Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine & I Department of Medicine University Medical Center Hamburg-Eppendorf, Bernhard-Nocht-Straße 74, 20359 Hamburg, Germany
| | - E Joekes
- Liverpool School of Tropical Medicine, Pembroke Pl, Liverpool L3 5QA, UK.,Department of Radiology, Royal Liverpool University Hospital NHS Trust, Prescot St, Liverpool L7 8XP, UK
| | - S Bélard
- Centre de Recherches Médicales de Lambaréné (CERMEL), B.P: 242 Lambaréné, Gabon.,Department of Paediatric Pulmonology, Immunology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Augustenburgerplatz 1, 10117 Berlin, Germany.,Berlin Institute of Health, Anna-Louisa-Karsch-Straße 2, 10178 Berlin, Germany
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12
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Manouana GP, Lorenz E, Mbong Ngwese M, Nguema Moure PA, Maiga Ascofaré O, Akenten CW, Amuasi J, Rakotozandrindrainy N, Rakotozandrindrainy R, Mbwana J, Lusingu J, Byrne N, Melhem S, Zinsou JF, Adegbite RB, Hogan B, Winter D, May J, Kremsner PG, Borrmann S, Eibach D, Adegnika AA. Performance of a rapid diagnostic test for the detection of Cryptosporidium spp. in African children admitted to hospital with diarrhea. PLoS Negl Trop Dis 2020; 14:e0008448. [PMID: 32658930 PMCID: PMC7377516 DOI: 10.1371/journal.pntd.0008448] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 07/23/2020] [Accepted: 06/02/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Cryptosporidium is a protozoan parasite that causes mild to severe diarrhoeal disease in humans. To date, several commercial companies have developed rapid immunoassays for the detection of Cryptosporidium infection. However, the challenge is to identify an accurate, simple and rapid diagnostic tool for the estimation of cryptosporidiosis burden. This study aims at evaluating the accuracy of CerTest Crypto, a commercialized rapid diagnostic test (RDT) for the detection of Cryptosporidium antigens in the stool of children presenting with diarrhoea. METHODS A cross-sectional study was conducted in four study sites in Sub-Saharan Africa (Gabon, Ghana, Madagascar, and Tanzania), from May 2017 to April 2018. Stool samples were collected from children under 5 years with diarrhoea or a history of diarrhoea within the last 24 hours. All specimens were processed and analyzed using CerTest Crypto RDT against a composite diagnostic panel involving two polymerase chain reaction (PCR) tests (qPCR and RFLP-PCR,) as the gold standard. RESULTS A total of 596 stool samples were collected. Evaluation of the RDT yielded a very low overall sensitivity of 49.6% (confidence interval (CI) 40.1-59.0), a specificity of 92.5% (CI 89.8-94.7), positive predictive value of 61.3% (CI 50.6-71.2), and negative predictive value of 88.5% (85.3-91.1) when compared to the composite reference standard of qPCR and RFLP-PCR for the detection of Cryptosporidium species. Moreover, the performance of this test varied across different sites. CONCLUSION The weak performance of the studied RDT suggests the need to carefully evaluate available commercial RDTs before their use as standard tools in clinical trials and community survey of Cryptosporidium infections in pediatric cohorts.
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Affiliation(s)
- Gédéon Prince Manouana
- Centre de Recherches Médicales de Lambaréné
- German Center for Infection Research (DZIF), African partner institution, CERMEL, Gabon
- Institut für Tropenmedizin, Universität Tübingen, Tübingen, Germany
| | - Eva Lorenz
- Infectious Disease Epidemiology, Bernhard Nocht Insitute for Tropical Medicine, Hamburg, Germany
- German Center for Infection Research (DZIF), Hamburg-Borstel-Lübeck-Riems, Germany
- Institute of Medical Biostatistics, Epidemiology and Informatics, University Medical Centre of the Johannes Gutenberg University Mainz, Germany
| | - Mirabeau Mbong Ngwese
- Centre de Recherches Médicales de Lambaréné
- German Center for Infection Research (DZIF), African partner institution, CERMEL, Gabon
| | | | - Oumou Maiga Ascofaré
- Infectious Disease Epidemiology, Bernhard Nocht Insitute for Tropical Medicine, Hamburg, Germany
- German Center for Infection Research (DZIF), Hamburg-Borstel-Lübeck-Riems, Germany
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | | | - John Amuasi
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | | | | | - Joyce Mbwana
- National Institute for Medical Research (NIMR) & University of Copenhagen, Denmark
| | - John Lusingu
- National Institute for Medical Research (NIMR) & University of Copenhagen, Denmark
| | - Natalie Byrne
- Centre de Recherches Médicales de Lambaréné
- German Center for Infection Research (DZIF), African partner institution, CERMEL, Gabon
| | - Sophia Melhem
- Infectious Disease Epidemiology, Bernhard Nocht Insitute for Tropical Medicine, Hamburg, Germany
| | - Jeannot Frejus Zinsou
- Centre de Recherches Médicales de Lambaréné
- German Center for Infection Research (DZIF), African partner institution, CERMEL, Gabon
| | - Roméo Bayodé Adegbite
- Centre de Recherches Médicales de Lambaréné
- German Center for Infection Research (DZIF), African partner institution, CERMEL, Gabon
| | - Benedikt Hogan
- Infectious Disease Epidemiology, Bernhard Nocht Insitute for Tropical Medicine, Hamburg, Germany
| | - Doris Winter
- Infectious Disease Epidemiology, Bernhard Nocht Insitute for Tropical Medicine, Hamburg, Germany
| | - Jurgen May
- Infectious Disease Epidemiology, Bernhard Nocht Insitute for Tropical Medicine, Hamburg, Germany
| | - Peter Gottfried Kremsner
- Centre de Recherches Médicales de Lambaréné
- German Center for Infection Research (DZIF), African partner institution, CERMEL, Gabon
- Institut für Tropenmedizin, Universität Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), partner site Tübingen, Germany
| | - Steffen Borrmann
- Centre de Recherches Médicales de Lambaréné
- German Center for Infection Research (DZIF), African partner institution, CERMEL, Gabon
| | - Daniel Eibach
- Infectious Disease Epidemiology, Bernhard Nocht Insitute for Tropical Medicine, Hamburg, Germany
- German Center for Infection Research (DZIF), Hamburg-Borstel-Lübeck-Riems, Germany
| | - Ayola Akim Adegnika
- Centre de Recherches Médicales de Lambaréné
- German Center for Infection Research (DZIF), African partner institution, CERMEL, Gabon
- Institut für Tropenmedizin, Universität Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), partner site Tübingen, Germany
- * E-mail:
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Kreidenweiss A, Trauner F, Rodi M, Koehne E, Held J, Wyndorps L, Manouana GP, McCall M, Adegnika AA, Lalremruata A, Kremsner PG, Fendel R, Sandri TL. Monitoring the threatened utility of malaria rapid diagnostic tests by novel high-throughput detection of Plasmodium falciparum hrp2 and hrp3 deletions: A cross-sectional, diagnostic accuracy study. EBioMedicine 2019; 50:14-22. [PMID: 31761619 PMCID: PMC6921222 DOI: 10.1016/j.ebiom.2019.10.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 11/03/2022] Open
Abstract
Background Plasmodium falciparum deficient for hrp2 and hrp3 genes are a threat to malaria management and elimination, since they escape widely used HRP2-based rapid diagnostic tests and treatment. Hrp2/hrp3 deletions are increasingly reported from all malaria endemic regions but are currently only identified by laborious methodologies. Methods We developed a novel hydrolysis probe-based, quantitative, real-time PCR (4plex qPCR) for detection and discrimination of P. falciparum infection (cytb) and hrp2 and hrp3 gene status, and to control assay validity (btub). A cross-sectional, diagnostic accuracy study was performed in Gabon for assay validation and deletion screening. Findings In parallel to identification of P. falciparum infection in samples down to 0.05 parasites/µl, the 4plex qPCR enabled specific and valid interrogation of the parasites´s hrp2 and hrp3 genes in one go - even in low parasitemic samples. The assay was precise and robust also when performed in a routine healthcare setting in Gabon. The risk of falsely identifying hrp2 or hrp3 deletion was reduced by 100-fold compared to conventional PCR. Evaluation against microscopy was performed on 200 blood samples collected in Gabon: sensitivity and specificity of 4plex qPCR (cytb) were 100% and 80%, respectively. Stringent testing revealed hrp2 deletion in 2 of 95 P. falciparum positive and validated samples. Interpretation The novel 4plex qPCR is sensitive, accurate and allows resource-efficient rapid screening. Monitoring and mapping of hrp2/hrp3 deletions is required to identify areas where control strategies may need to be adapted to ensure appropriate patient care and ultimately achieve malaria elimination. Funding BMBF (03VP00402).
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Affiliation(s)
- Andrea Kreidenweiss
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany; Centre de Recherches Médicales de Lambaréné, B.P. 242, Lambaréné, Gabon.
| | - Franziska Trauner
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany
| | - Miriam Rodi
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany
| | - Erik Koehne
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany
| | - Jana Held
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany; Centre de Recherches Médicales de Lambaréné, B.P. 242, Lambaréné, Gabon
| | - Lea Wyndorps
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany
| | | | - Matthew McCall
- Centre de Recherches Médicales de Lambaréné, B.P. 242, Lambaréné, Gabon
| | - Ayola Akim Adegnika
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany; Centre de Recherches Médicales de Lambaréné, B.P. 242, Lambaréné, Gabon; German Center for Infection Research (DZIF), Tübingen, Germany
| | - Albert Lalremruata
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany
| | - Peter G Kremsner
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany; Centre de Recherches Médicales de Lambaréné, B.P. 242, Lambaréné, Gabon; German Center for Infection Research (DZIF), Tübingen, Germany
| | - Rolf Fendel
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany
| | - Thaisa Lucas Sandri
- Institute of Tropical Medicine, University Hospital Tübingen, Wilhelmstrasse 27, D-72074 Tübingen, Germany.
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