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Vaccinations prior COVID: first investigations for BCG now for tetanus and diphteria

Vaccinations prior COVID: first investigations for BCG now for tetanus and diphteria

Medicomunicare Magazine | Health and Medical News
Several COVID 19 vaccines have been shown to be up to 95% effective in preventing symptomatic COVID 19 infections. Globally, 17 vaccines are licensed by at least one national regulatory authority for public use. In total, 308 vaccine candidates are in various stages of development as of March 2021. Annual flu vaccination is also a
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