Innate and adaptive immune responses after bovine viral diarrhea virus infection in the fetal thymus
Bovine viral diarrhea virus (BVDV) infection of bovine fetuses in the first 125 days of pregnancy results in persistently infected (PI) cattle and transiently infected (TI) cattle become infected, but have a developed immune system enabling them to clear the virus. PI cattle are the main source of BVDV infection in populations causing significant economic losses to the industry worldwide. The mechanisms that lead to this "immunotolerant" state are not well defined. Following maternal inoculation with BVDV on day 75 of gestation, fetal infection was determined by presence of viral mRNA. Fetal ...
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