Vaccination

immunization was called vaccination because it was derived from a virus affecting cows

https://en.wikipedia.org/wiki/Vaccine

http://vaccines.org/

History
http://www.historyofvaccines.org/

Gov
http://www.vaccines.gov/

Baby
http://www.vaccinateyourbaby.org/

Adult
http://www.adultvaccination.org/

Safety
http://vaccine-safety-training.org/

EU
http://www.vaccineseurope.eu/

Gavi

https://www.gavi.org/

People

https://peoplesvaccine.org/