Sporadic contact with unfamiliar source makes epidemic unlikely.
Department of Community and Family Medicine, The Chinese University of Hong Kong, 4/F, School of Public Health, Shatin, NT, Hong Kong. twwong@cuhk.edu.hk
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D004196:Disease Outbreaks / Q000517:prevention & control*; D006801:Humans; D011634:Public Health; D012008:Recurrence; D012621:Seasons; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission*