William A. Haseltine, pressfoto

William A. Haseltine, pressfoto

William A. Haseltine, pressfoto
https://en.wikipedia.org/wiki/William_A._Haseltine#/media/File:William_A._Haseltine.jpg

Vaccination. Foto: Public Health Image Library, Centers for Disease Control and Prevention (CDC). Licens: Unsplash.com