The COVID-19 vaccines by Pfizer and Moderna are both mRNA vaccines. These innovative vaccines place a small set of short-lived instructions inside your cells.
Si hay un 98% de posibilidades de que esté bien si contraigo COVID-19, ¿por qué querría una vacuna que tenga una eficacia del 95%? ¿Me estoy perdiendo de algo?
Some have claimed that taking the right vitamins at home can fight off COVID-19. See what infectious diseases expert Susan Swindells, MBBS, says about ongoing research.