PMID- 23342177 OWN - NLM STAT- MEDLINE DCOM- 20130619 LR - 20211021 IS - 1935-2735 (Electronic) IS - 1935-2727 (Print) IS - 1935-2727 (Linking) VI - 7 IP - 1 DP - 2013 TI - Comparison of the pathogenicity of Nipah virus isolates from Bangladesh and Malaysia in the Syrian hamster. PG - e2024 LID - 10.1371/journal.pntd.0002024 [doi] LID - e2024 AB - Nipah virus is a zoonotic pathogen that causes severe disease in humans. The mechanisms of pathogenesis are not well described. The first Nipah virus outbreak occurred in Malaysia, where human disease had a strong neurological component. Subsequent outbreaks have occurred in Bangladesh and India and transmission and disease processes in these outbreaks appear to be different from those of the Malaysian outbreak. Until this point, virtually all Nipah virus studies in vitro and in vivo, including vaccine and pathogenesis studies, have utilized a virus isolate from the original Malaysian outbreak (NiV-M). To investigate potential differences between NiV-M and a Nipah virus isolate from Bangladesh (NiV-B), we compared NiV-M and NiV-B infection in vitro and in vivo. In hamster kidney cells, NiV-M-infection resulted in extensive syncytia formation and cytopathic effects, whereas NiV-B-infection resulted in little to no morphological changes. In vivo, NiV-M-infected Syrian hamsters had accelerated virus replication, pathology and death when compared to NiV-B-infected animals. NiV-M infection also resulted in the activation of host immune response genes at an earlier time point. Pathogenicity was not only a result of direct effects of virus replication, but likely also had an immunopathogenic component. The differences observed between NiV-M and NiV-B pathogeneis in hamsters may relate to differences observed in human cases. Characterization of the hamster model for NiV-B infection allows for further research of the strain of Nipah virus responsible for the more recent outbreaks in humans. This model can be used to study NiV-B pathogenesis, transmission, and countermeasures that could be used to control outbreaks. FAU - DeBuysscher, Blair L AU - DeBuysscher BL AD - Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, Montana, USA. FAU - de Wit, Emmie AU - de Wit E FAU - Munster, Vincent J AU - Munster VJ FAU - Scott, Dana AU - Scott D FAU - Feldmann, Heinz AU - Feldmann H FAU - Prescott, Joseph AU - Prescott J LA - eng GR - Intramural NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Intramural DEP - 20130117 PL - United States TA - PLoS Negl Trop Dis JT - PLoS neglected tropical diseases JID - 101291488 SB - IM MH - Animals MH - Bangladesh MH - Cells, Cultured MH - Cricetinae MH - Cytopathogenic Effect, Viral MH - Disease Models, Animal MH - Female MH - Giant Cells/virology MH - Henipavirus Infections/*pathology/*virology MH - Humans MH - Malaysia MH - Mesocricetus MH - Nipah Virus/*isolation & purification/*pathogenicity MH - Survival Analysis MH - Time Factors MH - Virus Cultivation PMC - PMC3547834 COIS- The authors have declared that no competing interests exist. EDAT- 2013/01/24 06:00 MHDA- 2013/06/20 06:00 PMCR- 2013/01/17 CRDT- 2013/01/24 06:00 PHST- 2012/10/10 00:00 [received] PHST- 2012/12/05 00:00 [accepted] PHST- 2013/01/24 06:00 [entrez] PHST- 2013/01/24 06:00 [pubmed] PHST- 2013/06/20 06:00 [medline] PHST- 2013/01/17 00:00 [pmc-release] AID - PNTD-D-12-01284 [pii] AID - 10.1371/journal.pntd.0002024 [doi] PST - ppublish SO - PLoS Negl Trop Dis. 2013;7(1):e2024. doi: 10.1371/journal.pntd.0002024. Epub 2013 Jan 17.