Kan truat ha chua virus lae phum khumkan nai sukon thi tit chua Pseudorabies strain Nakhon Pathom.
1982
Jarunee Satra | Boonmee Sunyasootcharee | Somsak Puntuwattana
Five seronegative swine aged 40 days were exposed intranasally with the Nakhon Pathom strain of Pseudorabies virus (PRV) and were oberved for 35 days in an experiment to detect virus shedding and immune responses. All swine had to detect virus shedding and immune responses. All swine had PRV in their nasal passages at 7 days after inoculation, they also developed developed detectable preciptitating antibodies to PRV as determined by the microimmnodiffusion test (MIDT) and very low levels of virus neutralizing (VN) antibodies. The PRV could not be recovered from nasal swabs collected at 14, 21, 28 and 35 days after inoculation from all survived seine. All swine were tested positive by MIDT and developed the higher virus neutralizing antibodies at 14 days after inoculationonward. All PRV exposed swine gave positive delayed-type hypersensitivity skin reaction. Two control swine gave negative reactions when tested by MID, virus neutralization test and delayed-type hypersensitivity skin reaction test.
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