Asymptomatic infected individuals (and those infected with Alpha) had relatively high viral loads; samples from Alpha cases also had higher probability of viral culture positivity. Determining the infectiousness of individuals with COVID-19 requires considering degree of symptoms, time point within disease course, and whether the infection involves wild-type SARS-CoV-2 or […]
Key Points Genetic variants of SARS-CoV-2 have been emerging and circulating around the world throughout the COVID-19 pandemic. Viral mutations and variants in the United States are routinely monitored through sequence-based surveillance, laboratory studies, and epidemiological investigations. A US government interagency group developed a Variant Classification scheme that defines three […]
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)01358-1/fulltext?utm_campaign=lancetcovid21&utm_content=169598491&utm_medium=social&utm_source=facebook&hss_channel=fbp-374651963469 Créditos: Comité científico Covid
An Australian-led study will investigate whether it’s possible to predict who remains susceptible to SARS-CoV-2 variants after having COVID-19 or receiving a COVID-19-specific vaccine. The study will explore the immune response to COVID-19-specific vaccines in Brazilian healthcare workers to find biomarkers that indicate whether someone will be protected from – […]
A single pill of the investigational drug molnupiravir taken twice a day for 5 days eliminated SARS-CoV-2 from the nasopharynx of 49 participants. That led Carlos del Rio, MD, distinguished professor of medicine at Emory University in Atlanta, Georgia, to suggest a future in which a drug like molnupiravir could be […]
La llamada “variante mexicana”, cuyo nombre científico es T478K. Al igual que otras cepas, esta presenta una mutación en la proteína Spike. Un grupo de investigación del Departamento de Farmacia y Biotecnología de la Universidad de Bolonia analizó más de un millón de secuencias del genoma del SARS-CoV-2. En donde se estudio, […]
What are the SARS-CoV-2 variants circulating at this time? How are variants classified as variants of interest or concern? What does this mean for the public? WHO’s COVID-19 Technical Lead Dr Maria Van Kerkhove explains in this Science in 5 video. https://www.facebook.com/whowpro/videos/312398667110502 What are the SARS-CoV-2 variants circulating at […]
La vacunación, al igual que el contagio, inmuniza a la persona afectada. Pero eso no significa que el virus desaparezca o no se contagié. Una de las preguntas más frecuentes sobre la vacuna contra el virus de la COVID-19 tiene que ver con su respuesta inmunitaria y sobre sus efectos post-aplicación. Si […]
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a member of a diverse family of enveloped, nonsegmented RNA viruses. The coronavirus genomic RNA is unusually large, the RNA polymerase is error-prone, and mutations accumulate with increasing frequency during infections. With continued uncontrolled transmission and viral replication, mutations that give the […]
Créditos: Comité científico Covid
