Source of infection    n  %
Case imported
Wuhan, China  11  68.8
Zhuhai, China  1  6.3
Japan  1  6.3
Singapore  2  12.5
Thailand  1  6.3
Local transmission site
Residence  7  70.0
Outside residence  3  30.0
Hospital  -  -
Airplane  -  -
Relationship in local transmission
Family  5  50.0
Relatives  2  20.0
Acquaintance  3  30.0
Co-worker  -  -
Mean ± SD  Range
Incubation period*   4.1 ± 1.85  2–9