Nipah Virus Replication Kinetics in Vero Cells
Author Information
Author(s): Chang Li-Yen, Ali AR Mohd, Hassan Sharifah Syed, AbuBakar Sazaly
Primary Institution: Center for Proteomics Research, Department of Forest Biotechnology, Forest Research Institute, Malaysia
Hypothesis
The study aims to estimate the replication kinetics of Nipah virus in vitro using a quantitative real-time RT-PCR assay.
Conclusion
The study found that Nipah virus replicates well in Vero cells but has a low rate of extracellular RNA release and infectious virus yield.
Supporting Evidence
- Nipah virus RNA doubles approximately every 40 minutes in Vero cells.
- Peak intracellular virus RNA levels reached about 8.4 log PFU/μL at 32 hours post-infection.
- Significant extracellular Nipah virus RNA release occurred only after 8 hours post-infection.
Takeaway
Nipah virus grows inside cells but doesn't release many copies into the surrounding area, which means it spreads slowly.
Methodology
The study used a one-step SYBR® Green I-based quantitative real-time reverse transcriptase-polymerase chain reaction (qRT-PCR) assay to measure Nipah virus RNA levels in infected Vero cells.
Limitations
The method could not differentiate between infectious and noninfectious RNA, and the study was limited to in vitro conditions.
Digital Object Identifier (DOI)
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