pathogen 病原体
mortality rate 死亡率
fever 感冒
cough 咳嗽
sore throat 喉咙疼痛发炎
pneumonia肺炎
acute respiratory distress 急性的呼吸道疾病
viral pneumonia 病毒性肺炎
紫外线 ultraviolet radiation
消毒剂 disinfectants
防护服 protective clothing,masks of N95-type
扑杀(动物) cull,stamp out, destroy
机械性传媒 mechanical vectors
自然宿主 natural reservoir (of bird flu viruses)
抗传染 resistant to infection
流感流行 influenza pandemic