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In August 2021, Public Health England (PHE) reported secondary attack rate in household contacts of non-travel or unknown cases for Delta to be 10.8% vis-à-vis 10.2% for the Alpha variant; [10] the case fatality rate for those 386,835 people with Delta is 0.3%, where 46% of the cases and 6% of the deaths are unvaccinated and below 50 years old ...
A study of samples collected in Manaus between November 2020 and January 2021, indicated that the Gamma variant is 1.4–2.2 times more transmissible and was shown to be capable of evading 25–61% of inherited immunity from previous coronavirus diseases, leading to the possibility of reinfection after recovery from an earlier COVID-19 ...
After declining sharply for months, coronavirus cases in the U.S are climbing again as a result of the Delta variant. Here's what to know about the fast-spreading variant and how to stay safe and ...
Scientists in several countries have detected a delta-omicron hybrid variant. Here's what experts know about deltacron. A hybrid Covid variant has been detected.
The continued spread of the SARS-CoV-2 virus has spawned a Greek alphabet of variants - a naming system used by the World Health Organization to track concerning new mutations of the virus that ...
Confirmed cases [1] as of 19 December Confirmed cases [2] as of 23 November Cases (other sources) as of 19 January 2022 First detection Last detection United Kingdom 985,491: 826,465: 1,625,557 [3] 22 February 2021 United States 1,099,811: 947,472: 99.4% of cases [4] 23 February 2021 Canada 78,412: 62,008: 196,866 [5] 15 March 2021 Germany
The Delta variant is the fastest, fittest and most formidable version of the coronavirus that causes COVID-19 the world has encountered, and it is upending assumptions about the disease even as ...
Deltacoronavirus (Delta-CoV) is one of the four genera (Alpha-, Beta-, Gamma-, and Delta-) of coronaviruses. It is in the subfamily Orthocoronavirinae of the family Coronaviridae . They are enveloped , positive-sense , single-stranded RNA viruses .