Emerging infectious disease: repeat of an old challenge.
St John
R
R
D002170:Canada; D003140:Communicable Disease Control / Q000458:organization & administration / Q000639:trends*; D004196:Disease Outbreaks / Q000517:prevention & control*; D004352:Drug Resistance, Microbial; D014943:Global Health; D006801:Humans; D014777:Virus Diseases / Q000517:prevention & control