1887

Abstract

SUMMARY

Infectious virus could not be recovered by disruption of human embryonic fibroblast cultures inoculated with cytomegalovirus and treated with cytosine-arabinoside (ara-C), either during treatment or 4 to 5 days after removing ara-C. However, when intact cells were used for infection, at least 1 in 70 cells was found harbouring virus. Examination by immunofluorescence revealed that 40 to 50% of the cells contained virus-specific antigens in the form of small granules diffusely distributed in the nuclei. The presence of infectious virus could be detected even in disrupted cells 4 to 5 days after removing ara-C; intracellular antigens of every kind were also found to develop. Experiments showed that the cultures continued to harbour latent infection indefinitely in the presence of ara-C. Cultures harbouring latent virus were susceptible to superinfection with cytomegalovirus.

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/content/journal/jgv/10.1099/0022-1317-18-2-143
1973-02-01
2021-10-17
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