Pfizer, Oxford vaccines reduce severe COVID-19 in
The Pfizer and Oxford-AstraZeneca vaccines for COVID-19 are highly effective in reducing severe coronavirus infection among people aged 70 years and above, according
The Pfizer and Oxford-AstraZeneca vaccines for COVID-19 are highly effective in reducing severe coronavirus infection among people aged 70 years and above, according
The study says antibody levels against covid spike protein remained at similar levels for 3 months New Delhi: A three-month interval between doses