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Fong SY, Mori D, John JL, Giloi N, Jeffree MS, Ahmed K. Mumps outbreak in university students: first detection of mumps virus genotype F in Borneo. Trop Med Health 2022; 50:20. [PMID: 35236426 PMCID: PMC8889699 DOI: 10.1186/s41182-022-00411-w] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/22/2022] [Indexed: 11/10/2022] Open
Abstract
Background In October 2016, a mumps outbreak occurred among the students living in the on-campus dormitory of a public university located in Kota Kinabalu, Sabah, Malaysia. This study aimed to investigate the outbreak and identify the genotype of the mumps virus (MuV) strain that was involved in the outbreak. Main body During the outbreak, one 21-year-old and four 20-year-old males staying in the same dormitory building were reported to have developed symptoms of mumps. Of these, two students were available during the investigation for sample collection to detect MuV by reverse transcription polymerase chain reaction (RT-PCR) of the 639-bp fragment encompassing the entire small hydrophobic (SH) gene. Nucleotide sequencing of the amplicon and phylogenetic analysis using the neighbor-joining method was performed to determine the MuV genotype. Of the two buccal swab samples, one was positive for MuV. The MuV strain in this sample belonged to genotype F and it was clustered together with genotype F strains from China with 96.84–99.68% nucleotide identity. Conclusions Genotype F has limited circulation and is endemic in mainland China. Genotype F strains occasionally reported from other countries were epidemiologically linked to China. This study is the first to report a case of genotype F MuV in Malaysia and no epidemiological link could be established with mainland China. The results provide important information that can assist in strategic planning to improve the prevention and control of mumps infection in Malaysia.
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Affiliation(s)
- Siat Yee Fong
- Borneo Medical and Health Research Centre, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia.,Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Daisuke Mori
- Department of Pathology and Microbiology, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia.,Department of Health Sciences, School of Medicine, Kyushu University, Fukuoka, Japan
| | - Jecelyn Leaslie John
- Borneo Medical and Health Research Centre, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Nelbon Giloi
- Department of Community and Family Medicine, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Mohammad Saffree Jeffree
- Department of Community and Family Medicine, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Kamruddin Ahmed
- Borneo Medical and Health Research Centre, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia. .,Department of Pathology and Microbiology, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia.
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Forgione RE, Di Carluccio C, Milanesi F, Kubota M, Fabregat Nieto F, Molinaro A, Hashiguchi T, Francesconi O, Marchetti R, Silipo A. Characterization of Natural and Synthetic Sialoglycans Targeting the Hemagglutinin-Neuraminidase of Mumps Virus. Front Chem 2021; 9:711346. [PMID: 34778199 PMCID: PMC8578797 DOI: 10.3389/fchem.2021.711346] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 09/13/2021] [Indexed: 11/13/2022] Open
Abstract
The inhibition of surface viral glycoproteins offers great potential to hamper the attachment of viruses to the host cells surface and the spreading of viral infection. Mumps virus (MuV) is the etiological agent of the mumps infectious disease and causes a wide spectrum of mild to severe symptoms due to the inflammation of the salivary glands. Here we focus our attention on the hemagglutinin-neuraminidase (HN) isolated from MuV SBL-1 strain. We describe the molecular features of host sialoglycans recognition by HN protein by means of NMR, fluorescence assays and computational studies. Furthermore, we also describe the synthesis of a N-acetylneuraminic acid-derived thiotrisaccharide targeting the viral protein, and the corresponding 3D-complex. Our results provide the basis to improve the design and synthesis of potent viral hemagglutinin-neuraminidase inhibitors.
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Affiliation(s)
- Rosa Ester Forgione
- Department of Chemical Sciences, Complesso Universitario Monte Sant'Angelo, University of Naples Federico II, Naples, Italy
| | - Cristina Di Carluccio
- Department of Chemical Sciences, Complesso Universitario Monte Sant'Angelo, University of Naples Federico II, Naples, Italy
| | - Francesco Milanesi
- Department of Chemistry "Ugo Schiff" and INSTM, University of Florence Polo Scientifico e Tecnologico, Florence, Italy.,Magnetic Resonance Center CERM, Sesto Fiorentino, Italy
| | - Marie Kubota
- Department of Virology, Faculty of Medicine, Kyushu University, Fukuoka, Japan
| | - Ferran Fabregat Nieto
- Department of Chemical Sciences, Complesso Universitario Monte Sant'Angelo, University of Naples Federico II, Naples, Italy
| | - Antonio Molinaro
- Department of Chemical Sciences, Complesso Universitario Monte Sant'Angelo, University of Naples Federico II, Naples, Italy
| | - Takao Hashiguchi
- Laboratory of Medical Virology, Department of Virus Research, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Oscar Francesconi
- Department of Chemistry "Ugo Schiff" and INSTM, University of Florence Polo Scientifico e Tecnologico, Florence, Italy
| | - Roberta Marchetti
- Department of Chemical Sciences, Complesso Universitario Monte Sant'Angelo, University of Naples Federico II, Naples, Italy
| | - Alba Silipo
- Department of Chemical Sciences, Complesso Universitario Monte Sant'Angelo, University of Naples Federico II, Naples, Italy
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Qiu H, Zhao H, Xiang H, Ou R, Yi J, Hu L, Zhu H, Ye M. Forecasting the incidence of mumps in Chongqing based on a SARIMA model. BMC Public Health 2021; 21:373. [PMID: 33596871 PMCID: PMC7890879 DOI: 10.1186/s12889-021-10383-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 02/03/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mumps is classified as a class C infection disease in China, and the Chongqing area has one of the highest incidence rates in the country. We aimed to establish a prediction model for mumps in Chongqing and analyze its seasonality, which is important for risk analysis and allocation of resources in the health sector. METHODS Data on incidence of mumps from January 2004 to December 2018 were obtained from Chongqing Municipal Bureau of Disease Control and Prevention. The incidence of mumps from 2004 to 2017 was fitted using a seasonal autoregressive comprehensive moving average (SARIMA) model. The root mean square error (RMSE) and mean absolute percentage error (MAPE) were used to compare the goodness of fit of the models. The 2018 incidence data were used for validation. RESULTS From 2004 to 2018, a total of 159,181 cases (93,655 males and 65,526 females) of mumps were reported in Chongqing, with significantly more men than women. The age group of 0-19 years old accounted for 92.41% of all reported cases, and students made up the largest proportion (62.83%), followed by scattered children and children in kindergarten. The SARIMA(2, 1, 1) × (0, 1, 1)12 was the best fit model, RMSE and MAPE were 0.9950 and 39.8396%, respectively. CONCLUSION Based on the study findings, the incidence of mumps in Chongqing has an obvious seasonal trend, and SARIMA(2, 1, 1) × (0, 1, 1)12 model can also predict the incidence of mumps well. The SARIMA model of time series analysis is a feasible and simple method for predicting mumps in Chongqing.
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Affiliation(s)
- Hongfang Qiu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016 China
| | - Han Zhao
- Chongqing Municipal Center for Disease Control and Prevention, Chongqing, 400042 China
| | - Haiyan Xiang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016 China
| | - Rong Ou
- Department of Medical Informatics Library, Chongqing Medical University, Chongqing, 400016 China
| | - Jing Yi
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016 China
| | - Ling Hu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016 China
| | - Hua Zhu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016 China
| | - Mengliang Ye
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016 China
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Soni D, Van Haren SD, Idoko OT, Evans JT, Diray-Arce J, Dowling DJ, Levy O. Towards Precision Vaccines: Lessons From the Second International Precision Vaccines Conference. Front Immunol 2020; 11:590373. [PMID: 33178222 PMCID: PMC7593811 DOI: 10.3389/fimmu.2020.590373] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 09/23/2020] [Indexed: 12/16/2022] Open
Abstract
Other than clean drinking water, vaccines have been the most effective public health intervention in human history, yet their full potential is still untapped. To date, vaccine development has been largely limited to empirical approaches focused on infectious diseases and has targeted entire populations, potentially disregarding distinct immunity in vulnerable populations such as infants, elders, and the immunocompromised. Over the past few decades innovations in genetic engineering, adjuvant discovery, formulation science, and systems biology have fueled rapid advances in vaccine research poised to consider demographic factors (e.g., age, sex, genetics, and epigenetics) in vaccine discovery and development. Current efforts are focused on leveraging novel approaches to vaccine discovery and development to optimize vaccinal antigen and, as needed, adjuvant systems to enhance vaccine immunogenicity while maintaining safety. These approaches are ushering in an era of precision vaccinology aimed at tailoring immunization for vulnerable populations with distinct immunity. To foster collaboration among leading vaccinologists, government, policy makers, industry partners, and funders from around the world, the Precision Vaccines Program at Boston Children's Hospital hosted the 2nd International Precision Vaccines Conference (IPVC) at Harvard Medical School on the 17th-18th October 2019. The conference convened experts in vaccinology, including vaccine formulation and adjuvantation, immunology, cell signaling, systems biology, biostatistics, bioinformatics, as well as vaccines for non-infectious indications such as cancer and opioid use disorder. Herein we review highlights from the 2nd IPVC and discuss key concepts in the field of precision vaccines.
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Affiliation(s)
- Dheeraj Soni
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children’s Hospital, Boston, MA, United States
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States
| | - Simon D. Van Haren
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children’s Hospital, Boston, MA, United States
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States
| | - Olubukola T. Idoko
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children’s Hospital, Boston, MA, United States
- Vaccine Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Jay T. Evans
- Center for Translational Medicine, University of Montana, Missoula, MT, United States
| | - Joann Diray-Arce
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children’s Hospital, Boston, MA, United States
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States
- Broad Institute of MIT & Harvard, Cambridge, MA, United States
| | - David J. Dowling
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children’s Hospital, Boston, MA, United States
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States
| | - Ofer Levy
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children’s Hospital, Boston, MA, United States
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States
- Broad Institute of MIT & Harvard, Cambridge, MA, United States
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