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Volume 17, Number 8—August 2011

CME ACTIVITY

Risk Factors for Pandemic (H1N1) 2009 Seroconversion among Adults, Singapore, 2009

Wei-Yen LimComments to Author , Cynthia H.J. Chen, Yi Ma, Mark I.C. Chen, Vernon J.M. Lee, Alex R. Cook, Linda W.L. Tan, Norberto Flores Tabo, Ian G. Barr, Lin Cui, Raymond T.P. Lin, Yee Sin Leo, and Kee Seng Chia
Author affiliations: Author affiliations: National University of Singapore, Singapore (W.-Y. Lim, C.H.J. Chen, Y. Ma, M.I.C. Chen, V.J.M. Lee, L.W.L. Tan, N. Flores Tabo, Jr., K.S. Chia); Tan Tock Seng Hospital, Singapore (M.I.C. Chen, Y.S. Leo); Ministry of Defence, Singapore (V.J.M. Lee); National University of Singapore, Singapore (A.R. Cook); World Health Organization Collaborating Centre for Reference and Research on Influenza, Melbourne, Victoria, Australia (I. Barr); Ministry of Health, Singapore (L. Cui, R.T.P. Lin)

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Figure 1

A) Estimated pandemic (H1N1) 2009 curve, Singapore, June–September 2009. Data obtained from general practice sentinel data. Blue bars indicate number of influenza-like illness episodes per general practice per week. Red curve indicates estimated number of consults for pandemic (H1N1) 2009 per general practice per week. Orange bars indicate period of blood sample collection in the adult cohort (23). B) Summary of recruitment numbers and dates of blood collection in the adult community cohort.

Figure 1. A) Estimated pandemic (H1N1) 2009 curve, Singapore, June–September 2009. Data obtained from general practice sentinel data. Blue bars indicate number of influenza-like illness episodes per general practice per week. Red curve indicates estimated number of consults for pandemic (H1N1) 2009 per general practice per week. Orange bars indicate period of blood sample collection in the adult cohort (23). B) Summary of recruitment numbers and dates of blood collection in the adult community cohort.

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