Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Deaths in budgerigars associated with a paramyxovirus-like agent.

Abstract

During a 2-year period, 10 budgerigars (approx. 20% of the total stock) died in a private aviary during an outbreak of disease characterized by vomiting and diarrhoea. PM examination of 3 carcasses revealed fouling around the beak and vent and widespread haemorrhagic enteritis. Routine bacteriology and parasitology did not detect any significant bacteria or parasites. A paramyxovirus-like agent was isolated after passage of liver and spleen samples via embryonated SPF hens' eggs and inoculation of amnio-allantoic fluid from eggs dead at the 3 passage level into Vero African green monkey cells or chicken embryo fibroblast monolayers. Haemagglutination inhibition and virus neutralization tests with monospecific antisera against paramyxoviruses type 1 to 9 showed that only antisera against paramyxovirus type 5, the so called Kunitachi virus, inhibited and neutralized the virus, in both cases to high titre. This is the first report on the isolation and identification of this virus outside Japan and Australia.