[1] Univ Hong Kong, Queen Mary Hosp, Dept Microbiol, Div Infect Dis, Pokfulam Rd, Hong Kong, Peoples R China
[2] Univ Hong Kong, Dept Microbiol, Div Infect Dis, Hong Kong, Peoples R China
[3] Tuen Mun Hosp, Dept Pathol, Hong Kong, Peoples R China
[4] Queen Elizabeth Hosp, Dept Microbiol, Hong Kong, Peoples R China
[5] Princess Margaret Hosp, Dept Microbiol, Hong Kong, Peoples R China