People who received a first dose of the Oxford-AstraZeneca COVID-19 vaccine followed by an mRNA vaccine shot had a lower risk of infection compared to those immunised with both doses of the AstraZeneca preventive, according to a nationwide study in Sweden.
COVID-19 Vaccine Boosters: Essential Info everydayhealth.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from everydayhealth.com Daily Mail and Mail on Sunday newspapers.
U K Deaths at Zero; WHO Backs Sinovac Vaccine: Virus Update bnnbloomberg.ca - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from bnnbloomberg.ca Daily Mail and Mail on Sunday newspapers.