猪感 swine flu

传染病 communicable disease

呼吸道疾病 respiratory disease

病毒 virus

流通，传播 circulate

流行感冒 inluenza; the flu

肺炎 pneumonias

病例 case

疑似病例 suspected case

爆发 outbreak

咳嗽 cough

打喷嚏 sneeze

疫苗 vaccine