vials of the 2009 H1N1 swine flu vaccine superimposed on a chest x-ray of a patient with swine flu pneumonia

- Image ID: BN3P9K
Scott Camazine / Alamy Stock Photo
Image ID: BN3P9K
vials of the 2009 H1N1 swine flu vaccine superimposed on a chest x-ray of a patient with swine flu pneumonia