Since November 2021, the Omicron variant of SARS-CoV-2 has quickly become the most dominant variant worldwide. Early sequencing of Omicron in South Africa alerted researchers to the possibility that Omicron could be a cause for concern due to extensive mutations of the spike protein. Omicron has 30 mutations of the […]
The BA.2 variant, a subvariant of omicron, recently led to a surge in COVID cases in Europe, and now it is the dominant variant in the United States. This week also brought news of two new sub-lineages of BA.2—BA.2.12 and BA.2.12.1—in New York. Once again, we turned to our Institute for Health Metrics and […]
Artículo publicado en la revista Nature Medicine acerca de los resultados de la inoculación intranasal provocada con el virus SARS-CoV-2 en 36 voluntarios ingleses de 18 a 29 años sin evidencia de infección o vacunación, y cuyo objetivo primario era identificar la dosis vírica que inducía una infección bien tolerada en más […]
Dos nuevas subvariantes de ómicron que parecen incluso más transmisibles que el altamente contagioso BA.2 están impulsando un aumento en los casos de COVID en Nueva York, informó el miércoles el departamento de salud del estado. Si bien no hay evidencia de que ninguna de las dos subvariantes cause una enfermedad más grave, […]
La semana pasada se registró el menor número de muertes por COVID-19 desde los primeros días de la pandemia, destacó este miércoles la Organización Mundial de la Salud que, a su vez, advirtió que en algunos países se siguen registrando “picos graves” de casos, una situación que presiona a los hospitales. Esta circunstancia comporta […]
El mundo se mantiene en un momento complicado por la pandemia de Covid-19. Por una parte, se observa una notoria disminución de casos en la mayoría de países. Pero aunque es una buena noticia, el exceso de confianza podría ser contraproducente. La consecuencia se puede traducir en rebrotes como los […]
Federal regulators announced Tuesday that GlaxoSmithKline’s COVID-19 drug should no longer be used because it’s likely ineffective against BA.2, the Omicron subvariant that now accounts for most new cases in the U.S., the Associated Press reports. The FDA announced that the antibody drug sotrovimab is no longer authorized to treat patients in U.S. […]
The Centers for Medicare & Medicaid Services (CMS) now provides data on COVID-19 vaccine booster shots among residents and staff at nursing homes. The data, which feature both completed vaccination and booster rates for individual facilities, is accessible via the Medicare.gov Care Compare website. State and national averages of completed vaccination […]
More than a third of COVID-19 cases in the U.S. are now caused by the Omicron subvariant BA.2. Although the proportion of BA.2 cases is increasing, overall infections are still declining from the record highs seen in January, according to Reuters. For the week ending March 19, BA.2 accounted for 35% […]
A new omicron subvariant of the virus that causes COVID-19, BA.2, is quickly becoming the predominant source of infections amid rising cases around the world. Immunologists Prakash Nagarkatti and Mitzi Nagarkatti of the University of South Carolina explain what makes it different from previous variants, whether there will be another […]
