100+ Vaccination work PowerPoint (PPT) Presentations, Vaccination work PPTs

Vaccination work - PowerPoint PPT Presentation

Even 2,500 Years Ago, People Knew Immunity Worked.

Even 2,500 Years Ago, People Knew Immunity Worked. Greek physicians noticed that people who survived smallpox never got it again. The insight: Becoming infected by certain diseases gives immunity. How does vaccination work?. Expose the patient to an Antigen.

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Vaccination work - PowerPoint PPT Presentation

Even 2,500 Years Ago, People Knew Immunity Worked.