1982年3月～1983年7月从登革热疫区收集动物血清,进行血清学研究。发现19只恒河猴中,有2只的 HI 呈阳性(10.53%);127只猪中,有25只的 HI 呈阳性(19.68%);123只猪中,有8只的 C、F、T 呈阳性(6.5%);41只鸡中,有6只的 HI 呈阳性(14.63%),有4只的 C.F.T 呈阳性(9.75%)。而牛、鹅、鸭血清均阴性。说明猴、猪、鸡也有感染。以 D_3病毒感染无登革抗体的鸡,在感染后的第1～4天出现病毒血症,并能在第1～14天的鸡血中分离出相应的病毒。 From March 1982 to July 1983, animal serum was collected from dengue areas for serological research. Two out of 19 rhesus monkeys were positive for HI (10.53%). Of the 127 pigs, HI was positive for 25 (19.68%); of the 123 pigs, 8 had C, F, T was positive (6.5%); 6 of 41 chickens had positive HI (14.63%) and 4 had positive CFT (9.75%). The cattle, goose, duck serum were negative. Description monkey, pig, chicken also have infection. Chicken infected with D_3 virus without dengue antibody developed viremia on days 1 to 4 after infection and the corresponding virus was isolated from chicken blood on day 1 to 14.