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Abstract
Extract
Parainfluenza type 3(Pl3) virus has been associated with upper respiratory disease of cattle in many countries (Hoerlein et al., Citation1959; Bögel, Citation1961; Reisinger, Citation1962; Jolly and Ditchfield, Citation1965). However, PI3 virus has not been isolated from cattle with respiratory disease in New Zealand although a serological study found that 89.3% of cows had significant levels of antibody against PI3 virus (Pastier and Hansen, 1966). In most cases infections are subclinical, and there is little evidence to suggest that PI3 virus is an important cause of disease in New Zealand cattle (Jolly, Citation1967). This communication records an outbreak of upper respiratory disease in cattle from which PI3 virus was isolated.