Four avian pneumovirus (APV) isolates from chickens clinically diagnosed with swollen head syndrome were genetically characterized as to the subtypes of the virus in Japan. The results of reverse transcriptase–polymerase chain reactions based on subtype-specific primers and direct sequence analysis of G genes indicated subtypes A and B but not C or D of APV were present in Japan. Several routes or sources are conceivable for APV to invade into Japan.
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1 April 2003
Presence of Avian Pneumovirus Subtypes A and B in Japan
Masaji Mase,
Shigeo Yamaguchi,
Kenji Tsukamoto,
Tadao Imada,
Kunitoshi Imai,
Kikuyasu Nakamura
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Avian Diseases
Vol. 47 • No. 2
April 2003
Vol. 47 • No. 2
April 2003
avian pneumovirus
chickens
RT-PCR
SHS
subtype