Detection of fowlpox virus from red mite (Dermanyssus gallinae) at a layer farm occurring cutaneous fowlpox
2008
Chikuba, T.(Mie-ken. Government Office, Tsu (Japan)) | Itou, H. | Sakakibara, H. | Inoue, D.
A flock of 7,500 layers (about 90 days old) exhibited an increase in mortality, drowsiness, anorexia, and anthema from July to August 2007 in Mie Prefecture. Five live chickens were examined pathologically, bacteriologically and virologically. Anthema and crust were observed on the face, cervix and breast of affected chickens. Exudate was observed on the skin under the wing. At necropsy, there was no findings except the skin lesion. Bacteriologically, Staphylococcus spp. was isolated only from the skin. Purulent dermatitis with cytoplasmic inclusion was observed pathologically in the skin. Virologically, virulent fowlpox virus (FPV) was isolated from the skin. This virus was identified as a virulent strain of FPV by the immunization test. FPV DNA was detected by PCR from emulsion of red mites (Dermanyssus gallinae) captured in a pen infested with them.
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