Host and environment are key factors.
Lee
A
A
Department of Community and Family Medicine, The Chinese University of Hong Kong, School of Public Health, Prince of Wales Hospital, Shatin, NT, Hong Kong. alee@cuhk.edu.hk
D004196:Disease Outbreaks / Q000517:prevention & control*; D004198:Disease Susceptibility; D004777:Environment; D006801:Humans; D012008:Recurrence; D012307:Risk Factors; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology* / Q000517:prevention & control