From cholera to Covid, here’s a brief history of vaccines on World Immunisation Week - ThePrint

People were using simple forms of vaccinations as early as the 1500s, smearing smallpox on torn skin to create immunity.

As early as the 1500s, people were using simple forms of vaccinations, smearing smallpox on torn skin to create immunity, according to Gavi, the global vaccines alliance.At around the same date, Lady… [+3279 chars]

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