Protective Efficacy of Seasonal Influenza Vaccination against Seasonal and Pandemic Influenza Virus Infection during 2009 in Hong Kong
Cowling, Benjamin J.;Ng, Sophia;Ma, Edward S. K.;Cheng, Calvin K. Y.;Wai, Winnie;Fang, Vicky J.;Chan, Kwok-Hung;Ip, Dennis K. M.;Chiu, Susan S.;Peiris, J. S. Malik;Leung, Gabriel M.;
Abstract. Background. The relationship between seasonal influenza vaccine and susceptibility to 2009 pandemic A/H1N1 virus infection is not fully understood.Me