Seasonal flu vaccine. Syringe of the 2017/2018 seasonal influenza (flu) vaccine. This vaccine protects against two strains of influenza A, an H1N1 str

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Seasonal flu vaccine. Syringe of the 2017/2018 seasonal influenza (flu) vaccine. This vaccine protects against two strains of influenza A, an H1N1 strain and an H3N2 strain, and two strains of influenza B viruses.

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Photo credit: © DR P. MARAZZI/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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