This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Simmonds, R S Articles by Melnick, J L Search for Related Content PubMed PubMed Citation Articles by Simmonds, R S Articles by Melnick, J L Agricola Articles by Simmonds, R S Articles by Melnick, J L

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1985 April; 49(4): 749-755

Persistently infected cultures as a source of hepatitis A virus.

ABSTRACT

Primary African green monkey kidney, continuous African green monkey kidney cell line BS-C-1, and buffalo green monkey kidney cultures were infected with a uniform inoculum of hepatitis A virus (HAV). Although both the cell line BS-C-1 and primary African green monkey kidney cultures produced useful amounts of virus, HAV was detected earlier and in greater quantities in primary African green monkey kidney cultures. A persistently infected primary African green monkey kidney culture was developed. The influence of incubation time (4 to 40 days) and concentration (2 to 15%) of fetal calf serum in the maintenance medium on production of HAV by this culture was examined. An incubation period of 24 to 28 days was found to be optimal; reducing this period led to decreased yields of HAV. No significant difference in the amount of HAV produced was observed with differing concentrations of fetal calf serum. Three different methods of extraction and the effect of multiple extractions on the recovery of HAV from cell lysates were examined. Sonication was a critical factor. Two extractions yielded more than 90% recoverable virus. Yields in excess of 10(11) physical particles of HAV per 850-cm2 roller bottle were routine. The total yield could be increased by concentrating the HAV present in spent maintenance medium by using bentonite or organic flocculation.

This article has been cited by other articles:

• Schwab, K. J., Neill, F. H., Fankhauser, R. L., Daniels, N. A., Monroe, S. S., Bergmire-Sweat, D. A., Estes, M. K., Atmar, R. L. (2000). Development of Methods To Detect "Norwalk-Like Viruses" (NLVs) and Hepatitis A Virus in Delicatessen Foods: Application to a Food-Borne NLV Outbreak. Appl. Environ. Microbiol. 66: 213-218 [Abstract] [Full Text]