More than 3 years into the COVID-19 era, most Americans have settled back into their pre-pandemic lifestyles. But a new dominant variant and rising hospitalization numbers may give way to another summer surge. Since April, a new COVID variant has cropped up. According to recent CDC data, EG.5 — from […]
The new COVID-19 strain known as “Arcturus” has increased in the U.S. so much that it has been added to the CDC’s watch list. Officially labeled XBB.1.16, Arcturus is a subvariant of Omicron that was first seen in India and has been on the World Health Organization’s watchlist since the […]
France — During a round-table discussion at the French Senate, specialists in infectious disease and epidemiology presented their thoughts on what might happen after the Omicron wave passes. Will COVID become an endemic disease, or will new, worrisome variants emerge? Using various types of data, the experts shared their views which, […]
Abstract The newly reported Omicron variant is poised to replace Delta as the most prevalent SARS-CoV-2 variant across the world. Cryo-EM structural analysis of the Omicron variant spike protein in complex with human ACE2 reveals new salt bridges and hydrogen bonds formed by mutated residues R493, S496 and R498 in […]
Abstract Recently a new variant of SARS-CoV-2 was reported from South Africa. World Health Organization (WHO) named this mutant as a variant of concern – Omicron (B.1.1.529) on 26th November 2021. This variant exhibited more than thirty amino acid mutations in the spike protein. This mutation rate is exceeding the […]
(Reuters) – The Lambda variant of the coronavirus, first identified in Peru and now spreading in South America, is highly infectious and more resistant to vaccines than the original version of the virus the emerged from Wuhan, China, Japanese researchers have found. In laboratory experiments, they found that three mutations […]
In a U.K. observational study, two doses of the Pfizer-BioNTech and Oxford/AstraZeneca vaccines had 88% and 67% effectiveness, respectively, against the Delta variant. As the Delta (B.1.617.2) SARS-CoV-2 variant fuels a global surge in COVID-19, an urgent clinical question concerns how effective the available vaccines are against this variant. Using […]
Monitoring Variant Proportions Variants of SARS-CoV-2, the virus that causes COVID-19, are expected to continue to emerge. Some will emerge and disappear, and others will emerge and continue to spread and may replace previous variants. For example, the variant of the virus that caused the first U.S. COVID-19 cases in […]
Créditos: Comité científico Covid
The contagious delta variant has become the dominant form of the coronavirus in the U.S., now accounting for more than 51% of COVID-19 cases in the country, according to new CDC data updated on Tuesday. The variant, also known as B.1.617.2 and first detected in India, makes up more than 80% of […]
