A vaccine would also protect health workers and slow down the negative effects of Covid-19. Then on January 30, the World Health Organization (WHO) director-general, following the recommendations of its emergency committee, declared Covid-19 a public health emergency of international concern (PHEIC). IMMUNE RESPONSEA vaccine trains the immune system to recognise and attack the virus when it encounters it. Vaccines protect both the person who is vaccinated and the community. A vaccine would also protect health workers and slow down the negative effects of Covid-19.
Source: Daily Nation July 12, 2020 22:30 UTC