"outbreak"的搜索结果
找到 6 张相关图片
e coli o157 h7 was first recognized as a cause of illness in 1982 during an outbreak of severe bloody diarrhea
nipah virus was initially isolated in 1999 upon examining samples from an outbreak of encephalitis
health officials inspecting specimens suspected of being connected with a hantavirus outbreak
nurse in an isolation ward during the 1975 marburg outbreak in johannesburg south africa
sanitary procedures being practiced in a kikwit zaire clinic during the countrys 1995 ebola outbreak