This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Diagram of influenza infection symptoms EN.svg Main symptoms of swine influenza See Swine influenza Swine flu in Humans Updated version of File Diagram of swine influenza symptoms EN svg Change text to text boxes add muscles and joints tidy Created for but broadly applicable to any influenza article References cdc gov htm Centers