[1
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Infectious Disease Epidemiology Group, School of Public Health (B.J.C., V.J.F., L.L.H.L.,
H.C.S., R.O.P.F., G.M.L.), and the Department of Microbiology (K.H.C., E.S.K.M., J.S.M.P.),
Li Ka Shing Faculty of Medicine, University of Hong Kong; Hospital Authority, Government
of the Hong Kong Special Administrative Region (A.S.K.K., C.-W.C., W.W.S.T., H.-Y.N.,
D.W.S.C.); St. Paul's Hospital (P.W.Y.L.); St. Teresa's Hospital (M.-C.C.); and HKU-Pasteur
Research Centre (J.S.M.P.) - all in Hong Kong.