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Ómicron

How Accurate Are Home Antigen Tests for Omicron?

Unsupervised SARS-CoV-2 rapid antigen testing with three commercial kits had 70% to 81% sensitivity during the period when Omicron emerged and became predominant in the Netherlands. Rapid antigen testing for COVID-19 has largely replaced RT-PCR testing in the ambulatory setting, but accuracy data are limited. Dutch investigators performed a prospective […]

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Most People With Omicron Don’t Know They’re Infected

That’s according to a study in JAMA Network Open, which says 56% of people who have the Omicron variant of the coronavirus are unaware of their infection. And it has an upside and a downside, depending on how you look at it, according to Time magazine. “It’s good news, in some ways, since it underscores the […]

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Reino Unido aprueba la primera vacuna contra COVID-19 capaz de proteger de ómicron

Los reguladores de medicamentos británicos se han convertido en los primeros en el mundo en autorizar una versión actualizada de la vacuna contra el coronavirus de Moderna que tiene como objetivo proteger contra el virus original y la variante ómicron. En un comunicado este lunes, la Agencia Reguladora de Medicamentos (EMA) y Atención […]

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Meet ‘Centaurus,’ the new ‘stealth Omicron.’ It was just found in the U.S. and may escape immunity more than any other COVID strain

A new Omicron subvariant on the radar of the World Health Organization—one some experts say could be the most immune-evasive yet—has been identified in the U.S., the Centers for Disease Control and Prevention told Fortune on Thursday. There have been two cases of BA.2.75, dubbed “Centaurus,” detected in the U.S., with the […]

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Duration of Shedding of Culturable Virus in SARS-CoV-2 Omicron (BA.1) Infection

The B.1.1.529 (omicron) variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has a shorter incubation period and a higher transmission rate than previous variants.1,2 Recently, the Centers for Disease Control and Prevention recommended shortening the strict isolation period for infected persons in non–health care settings from 10 days to 5 […]

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Coronavirus (COVID-19) Update: FDA Recommends Inclusion of Omicron BA.4/5 Component for COVID-19 Vaccine Booster Doses

On Tuesday, the U.S. Food and Drug Administration’s independent experts on the Vaccines and Related Biological Products Advisory Committee met to publicly discuss whether a change to the current vaccine strain composition of COVID-19 vaccines for booster doses is necessary for the 2022 fall and winter seasons. The COVID-19 vaccines […]

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BNT162b2 Vaccine Effectiveness against Omicron in Children 5 to 11 Years of Age

Abstract BACKGROUND Limited evidence is available on the real-world effectiveness of the BNT162b2 vaccine against coronavirus disease 2019 (Covid-19) and specifically against infection with the omicron variant among children 5 to 11 years of age. METHODS Using data from the largest health care organization in Israel, we identified a cohort […]

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