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ATIVESITE | WHO: How do vaccines work?
Vaccines protect us against deadly diseases. Vaccines are a safe and clever way to
keep us healthy, safe and strong. Learn more about how #VaccinesWork.
#VaccinesWork for all is a campaign of the World Health Organization for the World
Immunization Week.
More information:
https://www.who.int/news-room/campaigns/world-immunization-week/world-immunization-week-2020
Source WHO YouTube