The etiological role of the parainfluenza-3 virus in the respiratory pathology of young cattle

Abstract

Parainfluenza virus-3 is the most common etiological agent in mixed respiratory diseases of calves with high concentrations of animals. The more severe course of the disease is observed with complications from bacterial or other viral infections. This article presents the results of clinical and epizootic, serological, virological and molecular genetic studies. A cytopathogenic agent was isolated from a pathological material taken from patients with respiratory diseases of calves in a BEK cell culture. Based on the results of serological and molecular biological studies, this isolate ("LD-9") was identified as the parainfluenza-3 virus in cattle.

A serosurvey for bovine respirovirus 3 in Turkish domestic ruminants: The first comparison study of A and C genotypes

“…The BPIV‐3 virus was first identified in the United States in 1959, when virus was isolated from nasal swabs of calves with symptoms including lack of appetite, coughing, nasal discharges, other respiratory signs, fever, lacrimation and conjunctivitis (Gueriche et al., 2020). BPIV‐3 has since been reported worldwide in both asymptomatic and clinically affected cattle and high prevalence of BPIV‐3‐specific antibodies has been noted, especially in beef and dairy herds.…”