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Updated: May 14, 2026

Influenza Virus Propagation in Embryonated Chicken Eggs
Published on: March 19, 2015
Myocarditis in 9- and 11-day-old broiler breeder chicks associated with a reovirus infection
James F Davis1, Arun Kulkarni, Oscar Fletcher
1Georgia Poultry Laboratory Network, P.O. Box 20, Oakwood, GA 30566, USA. jdavis@gapoultrylab.org
Abstract:
Nine- and 11-day-old male broiler breeder chicks from a flock with excessively high mortality were found to have ascites, fibrotic and necrotic livers, and round, thin-walled hearts. Virus isolation on liver homogenates and sequencing of PCR products of the isolate identified a reovirus whose sequence varied from sequences of other published reoviruses. Histopathology supported a diagnosis of reovirus-associated myocarditis and myocardial necrosis. This virus was possibly transmitted vertically from the primary breeder flock.
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