| Department |
1.Taiwan Provincial Research Institute for Animal Health, Tansui, Taiwan, R.O.C.
2.Tainan Livestock Disease Control Center, Tainan, Taiwan, R.O.C.
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| Summary |
Six ponies of 3 to 4 years old were imported form US in April of 1991. Four weeks later, five of them were sick and one eventually dead. The clinical signs included fever and mucopurulent nasal discharge. The gross lesions of the dead pony included congestion in the spleen, stomach, cecum, endocardium, lung, and trachea. Histopatholo-gical examinations revealed severe vascular congestion and lymphocytic cuffing in the brain. The attempt to isolate pathogen was fail. The survived five ponies had a neutraliz-ing antibody titers of 1 : 8 to 1 : 32 against subtype 1 equine herpes virus-I ( EHV-1 ).
A serological survey on EHV-1 infection was conducted using the antigen prepared from Ky-D strain EHV-1 virus by the agar gel precipitation ( AGP) test in 1991. The result indicated that out of 595 serum samples collected from 13 counties, 194 ( 32.6 % ) serum samples from 12 counties had the AGP antibodies against EHV-1. IN 1993 serological survey, a total of 106 serum samples were collected from 12 counties. Among them, 59 ( 55. 7 % ) horses form 10 counties had neutralizing antibody against EHV-1. Thus the EHV-1 infection already exist in the horse population in Taiwan.
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