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Aug 6, 2021 · SCIENCE. CORONAVIRUS COVERAGE. Why is Delta more infectious and deadly? New research holds answers. Studies show that Delta replicates more quickly and generates more virus...
Aug 5, 2021 · According to an internal CDC document, the Delta variant – one of four “variants of concern” that have evolved from SARS-CoV-2, the virus that causes COVID-19 – is more than twice as infectious as the original virus and as infectious as chickenpox. Denise Barchas, RN, works in the ICU respiratory isolation room at UCSF Mount Zion Medical Center.
Apr 8, 2022 · Stuart Ray, M.D. Lisa Maragakis, M.D., M.P.H. Updated on April 8, 2022. Since December 2020, several coronavirus variants have been identified and are under investigation. Each new variant raises questions: Are people more at risk for getting sick? Will the COVID-19 vaccines still work?
Nov 4, 2023 · The main variant in the United States is omicron. This variant spreads more easily than the original virus that causes COVID-19 and the delta variant. But omicron seems to cause less severe disease. Omicron has a few major offshoots, also called sublineages. Together the omicron variants make up nearly all COVID-19 infections in the United ...
Feb 6, 2023 · New variants of SARS-CoV-2, the virus that causes COVID-19, will continue to occur. CDC coordinates collaborative partnerships which continue to fuel the largest viral genomic sequencing effort to date. The Omicron variant, which emerged in November 2021, has many lineages.
Jun 22, 2021 · Covid's Delta Variant: What We Know - The New York Times. The Delta Variant: What Scientists Know. The variant is spreading rapidly worldwide and fueling new outbreaks in the U.S., mainly...
Jun 14, 2022 · First identified in Botswana and South Africa in November 2021, the Omicron variant quickly surged to global dominance, faster than any previously known form of the coronavirus. Over the...
