3 doses, then 1 each year: Why Pfizer, not AstraZeneca, is best for the long haul
COVID vaccine-makers largely protected on side effects
20 April 2021Nutrient compound shows promise for halting mother-to-fetus Zika transmission
20 April 20213 doses, then 1 each year: Why Pfizer, not AstraZeneca, is best for the long haul
Last week, the chief executive of Pfizer said anyone who receives its COVID-19 vaccine will probably need to have a third dose within 6-12 months after being fully immunized, and then likely one dose every year going forward.
