Affiliation: | Erasmus Medical Center, Rotterdam, the Netherlands (V. Stalin Raj, C.B.E.M. Reusken, M.M. Lamers, S.D. Pas, J. Voermans, S.L. Smits, A.D.M.E. Osterhaus, M.P.G. Koopmans, B.L. Haagmans); ;Supreme Council of Health, Doha , Qatar (E.A.B.A. Farag, H.E. Al-Romaihi, M.M. AlHajri, A.M. El-Sayed, M. Al-Thani, S.A. Al-Marri); ;Hamad Medical Corporation, Doha (N. Al-Mawlawi); ;Ministry of Environment, Doha (K.A. Mohran, H. Ghobashy, F. Alhajri, M.M. El-Maghraby) |