Parvaiz A Koul
Seasonal influenza is one of the principal causes of vaccine-preventable disease with up to 500,000 deaths per year worldwide (Thompson et al., 2003). Annual influenza vaccination is the most effective method for preventing influenza virus infection and its complications (Cox and Subbarao, 1999) and has been reported to prevent influenza-related respiratory tract infection by 56%, pneumonia by 53%, hospitalization by 50%, and mortality by 68%
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