Variantes Covid

Delta Variant Doubles Hospitalization Risk

People who contract the Delta variant have double the risk of hospitalization, as compared with earlier versions of the coronavirus, according to a new study published Friday in The Lancet Infectious Diseases. Based in England, the large study found that the Delta variant led to a higher rate of hospital admission and emergency care, with […]

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Variant Proportions

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 […]

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A Case for Mandatory COVID-19 Vaccination in College Students

There has been considerable debate regarding mandatory vaccine uptake among the general population, excluding those who have medical exemptions. The World Health Organization  states that “policy-makers should consider specifically whether vaccines authorized for emergency or conditional use meet an evidentiary threshold for safety sufficient for a mandate.” Ontario’s chief medical officer, Dr […]

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SARS-CoV-2 Variant Classifications and Definitions

Viral mutations and variants in the United States are routinely monitored through sequence-based surveillance, laboratory studies, and epidemiological investigations. A US government SARS-CoV-2 Interagency Group (SIG) developed a Variant Classification scheme that defines three classes of SARS-CoV-2 variants: Variant of Interest Variant of Concern Variant of High Consequence The B.1.1.7 (Alpha), B.1.351 […]

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Las nuevas variantes del coronavirus convierten la inmunidad de rebaño en una meta inalcanzable a corto plazo

Los expertos sitúan la protección de grupo alrededor del 90%, una cifra imposible de conseguir sin vacunar a los niños, que suponen el 11% de la población. La inmunidad de rebaño, esa piedra filosofal que iba a convertir la pandemia en un recuerdo, es una meta que hoy por hoy […]

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