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The Delta variant (B.1.617.2) is a highly transmissible variant of the COVID-19 virus that was first detected in India in October 2020. It has mutations in the spike protein that affect its infectivity and immune evasion, and has spread to over 179 countries by November 2021.
About 99.2% of COVID-related deaths since the beginning of 2021 have been among unvaccinated individuals, and the Delta variant is particularly contagious. “I can boil it down this way: Delta is ...
Learn about the genetic changes and characteristics of different variants of the virus that causes COVID-19, such as Alpha, Beta, Gamma, Delta and Omicron. Find out how they are named, classified, monitored and responded to by the World Health Organization and other sources.
The web page provides statistics of COVID-19 cases, deaths, recoveries, and hospitalizations by state and territory in the US. It also discusses the methods and challenges of measuring the pandemic's impact and the excess mortality.
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 ...
The Delta variant is more transmissible than the SARS-CoV-2 ancestral strain as well as the viruses that cause MERS, SARS, Ebola, the common cold, the seasonal flu and smallpox, the report said.
A chronological list of major events related to the COVID-19 pandemic in the United States during 2021, including cases, deaths, variants, vaccines, and policies. See how the U.S. passed milestones of 20, 21, 25, 28, and 30 million cases, and 400,000 and 500,000 deaths.
A table of confirmed COVID-19 deaths per million population as of 16 June 2024, by country. The data is based on official reports and may not reflect the true number of infections and deaths due to variations in testing, reporting, and classification.