From the Centers for Disease Control and Prevention. Update: severe acute respiratory syndrome--United States, 2003.
D016358:Contact Tracing; D006801:Humans; D017053:Infection Control; D008297:Male; D008875:Middle Aged; D010414:Pennsylvania / Q000453:epidemiology; D045473:Severe acute respiratory syndrome-related coronavirus / Q000302:isolation & purification*; D045169:Severe Acute Respiratory Syndrome / Q000175:diagnosis / Q000453:epidemiology* / Q000635:transmission; D014195:Travel; D014481:United States / Q000453:epidemiology