Flu vaccine might be less effective this year, new CDC report suggests
Flu vaccine might be less effective this year, new CDC report suggestshttps://wpnnradio.com/wp-content/themes/movedo/images/empty/thumbnail.jpg150150adminadminhttps://secure.gravatar.com/avatar/790df65a416873c3f0501d984b0b24a2f32bf2af0d1509085b901ade4bbb36e7?s=96&d=mm&r=g
Flu vaccine effectiveness in South America was 35% against hospitalization. source