| prolonged western equine encephalitis viremia in the texas tortoise (gopherus berlandieri). | subcutaneous inoculation of 34 texas tortoises (gopherus berlandieri) with either of two strains of western equine encephalitis (wee) virus resulted in prolonged viremia of up to 105 days' duration. peak viremia titers exceeded 10(6) suckling mouse intracranial lethal doses per milliliter. the length of the previremic period, the maximum viremia level attained, and the duration of viremia were markedly affected by environmental temperature. higher temperatures (30 degrees c) shortened the previr ... | 1977 | 842780 |