A plaque assay for the simian rotavirus SAII

Area of Science:

• Virology
• Cell Biology
• Biotechnology

Background:

• Simian rotavirus SAII is a significant viral agent.
• Accurate quantification of viral infectivity is crucial for research and diagnostics.
• Existing methods for simian rotavirus SAII measurement may lack sensitivity or reproducibility.

Purpose of the Study:

• To develop and validate a sensitive, quantitative, and reproducible plaque assay for simian rotavirus SAII.
• To identify optimal conditions for plaque formation, including necessary facilitators and suitable cell lines.

Main Methods:

• A plaque assay was optimized for simian rotavirus SAII.
• Plaque formation was assessed in the presence of facilitators like pancreatin or trypsin and diethylaminoethyl-dextran.
• The assay was tested using three continuous primate cell lines: MA-104, CV-1, and LLC-MK2.

Main Results:

• The plaque assay demonstrated sensitivity, quantitation, and reproducibility for simian rotavirus SAII.
• Plaque formation was dependent on the inclusion of pancreatin or trypsin and diethylaminoethyl-dextran.
• Simian rotavirus SAII formed plaques in MA-104, CV-1, and LLC-MK2 cells, with MA-104 cells exhibiting the highest sensitivity.

Conclusions:

• A reliable plaque assay for simian rotavirus SAII has been established.
• The assay's performance is enhanced by specific facilitators and optimized cell line selection.
• This method provides a valuable tool for studying simian rotavirus SAII infectivity and replication.