The Invention of Vaccinations
Kuvakäsikirjoitus Kuvaus
Vaccinations | Eradication of Diseases through Vaccines | Vaccinations allow a body to develop immunity to a pathogen by stimulating the immune system. A vaccine is substance that contains an agent the looks like a pathogen and is typically injected into the bloodstream.
Kuvakäsikirjoitus Teksti
- VACCINATION Vaccinations allow a body to develop immunity to a pathogen by stimulating the immune system. A vaccine is substance that contains an agent the looks like a pathogen and is typically injected into the bloodstream.
Yli 30 miljoonaa kuvakäsikirjoitusta luotu