Prevalence of indigenous viruses in laboratory animal colonies in the United Kingdom 1978-1979.

Compared with the results of the previous serological survey of 1976-1977, it can be seen that mouse hepatitis virus is still prevalent in the mouse colonies and that corona viruses of rats are also common. The prevalence of Sendai virus has increased considerably. However, the prevalence of Reo 3 virus appeared to have decreased, although this may be the results of the different test used.