World Immunization Week 2022: Five important things to know about vaccines - The Indian Express

Vaccines train the immune system to create antibodies, just as it does when it’s exposed to a disease, says a doctor

Observed in the last week of April, between April 24 and 30, the World Immunization Week “aims to highlight the collective action needed and to promote the use of vaccines to protect people of all ag… [+1665 chars]

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