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TGE Virus
? Transmissible gastroenteritis (TGE) is an acute, rapidly
spreading, viral disease of swine of all ages, characterized by
severe diarrhea and vomiting.
High mortality and morbidity in piglets under 2 weeks of age.
?
TGE is stable in low temperature, stable for 6 monthat 4¡ÆC
?
but inactivated 4 days at 36¡ÆC.
? TGE is highly photosensitive, becomeinactivated within 6
hours when exposed top sunlight or ultravioletlight.
TGEV vs. PRCV
? Porcinerespiratorycoronavirus(PRCV) is a TGEV variant infects
the respiratory tract with a mild respiratory disease in pigs .
? The PRCV is derived from TGEV by deletion of the S-gene and
lost its tropism for enterocytes but has increased tropism for the
lungs.
? PRCV present in many countries, including the Korea and United
States.
? Serologically, TGEV and PRCV cross-react;
¡°PRCV-infected pig produce antibodies that neutralize TGEV.¡±
ODAprojectbetweenAPQA(Korea)andNCVD(Vietnam)
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-TrainingcourseforPorcineEpidemicDiarrheaandviraldisease

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