Omicron infection appears to protect against Covid delta variant and could displace it, South Africa study finds - Earth News Report
A person performs a self-swab test for COVID-19 in the Brooklyn borough of New York, the United States, Dec. 17, 2021.Michael Nagle | Xinhua News Agency | Getty ImagesPeople infected with the heavily mutated omicron variant of Covid-19 may have increased immune protection against delta, a new study says.As a consequence, omicron could displace delta,
