Table 1.

Clinical characteristics of the patients.

Patient number	Age	Sex	Time interval of onset after exposure	Time interval of initial CT after exposure/onset	Clinical symptoms
1	29	Male	4	11/7	Fever, cough, headache, limb joint pain
2	27	Female	6	8/2	Fever, cough, fatigue
3	1	Female	9	15/6	Diarrhea
4	55	Female	–	12/–	Asymptomatic
5	33	Female	–	15/–	Asymptomatic
6	54	Male	10	9/–	Short of breath
7	35	Female	13	15/2	Cough, pharyngeal itching