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Sep 1, 2023 · It’s estimated that Delta caused more than twice as many infections as previous variants—in Connecticut, it was estimated to have been 80 to 90% more transmissible than the Alpha variant. In the U.S., in June 2021, after a steady decline in COVID-19 cases and hospitalizations, the arrival of Delta coincided with a rapid reversal of that trend.
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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. New lineages continue to emerge and spread in the United States and ...
Aug 17, 2023 · Omicron is a variant of SARS-CoV-2, the virus that causes COVID-19. It first appeared in November 2021 and quickly became the dominant variant around the world.
Jun 14, 2022 · Two new subvariants, BA.4 and BA.5, have been gaining ground in the United States. During the week ending June 11, the two subvariants accounted for 21.6 percent of cases in the country, up from ...
Dec 27, 2023 · JN.1 has overtaken HV.1 as the leading variant in the U.S. The latest vaccines provide some protection against each of them. For the past year, Covid-19 variants have circulated in a sort of ...
Sep 1, 2023 · The variant of the SARS-CoV-2 virus that causes COVID-19 first surfaced in the United States toward the end of 2021 and spread like wildfire, spawning new sub-strains—some more transmissible than others. Now, multiple Omicron subvariants are driving most of the COVID-19 cases in the United States. The newest Omicron strain arrived in the ...
Jan 8, 2024 · The covid virus is continually changing, and a recent version is rapidly climbing the charts. Even though it appeared only in September, the variant known as JN.1, a descendant of omicron, is ...
