How effective is the first shot of the Pfizer or Moderna vaccine?
COVID-19 pandemic severely impacts mental health of young people
22 March 2021Indian firm to make 200 mn doses of Russia’s Sputnik V
22 March 2021How effective is the first shot of the Pfizer or Moderna vaccine?
As the COVID-19 vaccines reach more people across the country, some people have asked: Could we delay the second dose of the Pfizer and Moderna vaccines to allow more people to be vaccinated more quickly? And, how safe am I after my first dose?
