1. In our epidemiological investigation, red body disease was commonly prevalent from July to October. The diseased shrimps first displayed sluggish swimming or held still at the bottom, sometime going round or swimming vertically. They were not active in feeding, at the same time, their pleopod and whole body turned red, then died.
通过对本地区南美白对虾红体病进行流行病学调查，发现夏秋两季为其多发季节，多集中于7～10月，病虾触须及尾扇的尖部变红，亦有附肢变红或全身呈红色，活动减弱，在池边水面缓慢游动或沉底不动，反应迟钝，摄食量减少。