Abstract
Summary
Types 1-4 of the new respiratory viruses, termed adenoviruses, were relatively stable when exposed to temperatures ranging from 4°C to 36°C. Type 1-3 viruses were inactivated in 10 to 20 minutes at 50°C, but the infectivity titer of type 4 virus was reduced less than 2 log units (99%) in 20 minutes. The adenoviruses were also resistant to inactivation at pH 6.0 to 9.0. The patterns of inactivation of the 4 viruses by alterations of pH as well as incubation at 50°C were similar, although consistent and significant differences among the 4 types were measured.
The excellent technical assistance of Miss Mary K. Dixon is gratefully acknowledged.
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