Some new studies that look at natural immunity a degree of protection against COVID-19 that a person develops after being infected have triggered discussion within the scientific community about the strength of such immunity. However, scientists tell CBC News it is no substitute for vaccination.
Middle-East Arab News and Opinion - Asharq Al-Awsat is the world’s premier pan-Arab daily newspaper, printed simultaneously each day on four continents in 14 cities
Undiagnosed SARS-CoV-2 seropositivity during the first 6 months of the COVID-19 pandemic in the United States sciencemag.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sciencemag.org Daily Mail and Mail on Sunday newspapers.
US had nearly 17 million undiagnosed COVID-19 cases in early months of pandemic: Study mycentraloregon.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from mycentraloregon.com Daily Mail and Mail on Sunday newspapers.