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School-based influenza vaccination associated with reduced absenteeism due to fever or cough, not for other reasons. http://t.co/Xo0OyKXBRj
School-based influenza vaccination associated with reduced absenteeism due to fever or cough, not for other reasons. http://t.co/Xo0OyKXBRj
Elementary School-Based Flu Vaccination: Impact on Respiratory Illness Absenteeism and Laboratory-Confirmed Flu. http://t.co/J0OwBYcuUh