Pathogenicity of PMV-3/parakeet/Netherlands/449/75 for chickens.
Infection of 1-day-old chicks with PMV-3/parakeet/Netherlands/449/75 (449) by intramuscular, intranasal or contact routes resulted in severe impairment of growth in all groups compared to uninfected control birds. In the group infected intramuscularly with 449 virus 16/22 birds died within 14 days of infection. No clinical signs were seen in 6-week-old chickens infected with 449 by intramuscular, intranasal or contact routes. One-day-old chicks infected with a large dose of NDV-B(1) and one-day-old chicks placed in contact with these birds also showed significant impairment of growth compared to uninfected controls.
Alexander
D J
DJ
Poultry Department, Central Veterinary Laboratory, New Haw, Weybridge, Surrey, England.
Collins
M S
MS