3.1 Outbreak description
The first case was a 23-years-old male with final death. 14 confirmed
cases, including 8 laboratory-confirmed cases and 6 silent-infection
cases were identified in the investigation. The overall attack rate of
this outbreak was 18.7%, with the highest attack rate of 25% in home,
followed by 19.1% in respiration apartment and 16% in emergency
apartment.
Among the 8 patients with clinic symptoms, the admitting diagnosis was 4
with upper respiratory infection, 3 with HAdV pneumonia and 1 with
severe pneumonia (the first/index case, death). Clinical manifestations
included fever (100%) with the highest at 40℃ and most cases presented
with sore throat (75%), cough (62.5%), headache (37.5%), and fatigue
(12.5%).