Abstract
Extract
In the United States of America, Gillespie et. al. (Citation1959) and McKercher et al. (Citation1959) reported that the causal viruses of infectious bovine rhinotracheitis and infectious pustular vulvovaginitis of cattle are identical. This paper records the isolation of a cytopathogenic agent from an outbreak of vulvovaginitis in cattle in New Zealand and some comparisons between this isolate and a strain of infectious bovine rhinotracheitis virusisolated by Webster and Manktelow (Citation1959).