Fig. 1From: Hypothalamus-pituitary-adrenal axis involves in anti-viral ability through regulation of immune response in piglets infected by highly pathogenic porcine reproductive and respiratory syndrome virusRectal temperature and percentage survival in piglets after HuN4 infection. Daily average rectal temperatures in the four groups (a), each point represents the mean values (±S.D.) generated from all pigs at each DPI; and percentage survival of piglets from the four groups (b)Back to article page