Tag Archives: SARS-CoV-2

Here’s where (and how) you are most likely to catch COVID – new study

VGstockstudio/Shutterstock Trish Greenhalgh, University of Oxford; Jose-Luis Jimenez, University of Colorado Boulder; Shelly Miller, University of Colorado Boulder, and Zhe Peng, University of Colorado Boulder Two years into the pandemic, most of us are fed up. COVID case rates are higher than they’ve ever been and hospitalisation rates are once again rising rapidly in many countries. Against this bleak picture, …

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Ciencia 2021: logramos vacunar pero olvidamos lo que significa una pandemia

Shutterstock / Jens Rother Sergio Ferrer Pérez, The Conversation El año pasado dejamos a nuestros protagonistas, la población entera del planeta Tierra, acorralados ante un nuevo coronavirus. Parecían a punto de ser derrotados por la pandemia de covid-19 cuando llegaron las primeras vacunas. Justo cuando terminaba 2020, las primeras dosis comenzaron a ser inyectadas en los brazos de algunos afortunados. …

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Omicron may not be the final variant, but it may be the final variant of concern

Ben Krishna, University of Cambridge It is controversial whether viruses are alive, but – like all living things – they do evolve. This fact has become abundantly clear during the pandemic, as new variants of concern have emerged every few months. Some of these variants have been better at spreading from person to person, eventually becoming dominant as they out-compete …

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The FDA authorizes Pfizer’s COVID-19 vaccine for children ages 5 to 11 – a pediatrician explains how the drug was tested for safety and efficacy

For many parents, the long-awaited COVID-19 vaccine authorization for younger kids can’t come soon enough. Vladimir Vladimirov/E+ via Getty Images Debbie-Ann Shirley, University of Virginia Elementary school children in the United States will soon have one more layer of protection to keep them safe from COVID-19. On Oct. 29, 2021, the Food and Drug Administration authorized emergency use of the …

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How to help kids with ‘long COVID’ thrive in school

Many long COVID-19 symptoms – such as fatigue, brain fog and memory impairment – are similar to those experienced post-concussion. Cavan Images/Cavan Collection via Getty Images Susan Davies, University of Dayton and Julie Walsh-Messinger, University of Dayton Children who get COVID-19 typically recover quickly and will not require special support upon return to school. However, some people who contract the …

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Omicron: evidence shows it evades immunity from earlier infection more than other variants

South Africa is seeing a spike in COVID-19 cases. EMMANUEL CROSET/AFP via Getty Images Cari van Schalkwyk, South African Centre for Epidemiological Modelling & Analysis (SACEMA) ; Harry Moultrie, National Institute for Communicable Diseases, and Juliet Pulliam, South African Centre for Epidemiological Modelling & Analysis (SACEMA) Scientists are working around the clock to get a better understanding of the Omicron …

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Will omicron – the new coronavirus variant of concern – be more contagious than delta? A virus evolution expert explains what researchers know and what they don’t

The omicron variant possesses numerous mutations in the spike protein, the knob-like protrusions (in red) that allow the virus to invade other cells. Juan Gaertner/Science Photo Library via Getty Images Suresh V. Kuchipudi, Penn State A new variant named omicron (B.1.1.529) was reported by researchers in South Africa on Nov. 24, 2021, and designated a “variant of concern” by the …

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The hunt for coronavirus variants: how the new one was found and what we know so far

Scientists find variants by sequencing samples from people that have tested positive for the virus. Lightspring/Shutterstock Prof. Wolfgang Preiser, Stellenbosch University; Cathrine Scheepers, University of the Witwatersrand; Jinal Bhiman, National Institute for Communicable Diseases; Marietjie Venter, University of Pretoria, and Tulio de Oliveira, University of KwaZulu-Natal Since early in the COVID pandemic, the Network for Genomics Surveillance in South Africa …

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No todo estornudo es sinónimo de coronavirus: estos son los virus más abundantes en invierno

Shutterstock / Olga Listopad Amparo Larrauri, Instituto de Salud Carlos III Los virus respiratorios son los responsables de una serie de infecciones respiratorias agudas que son extremadamente frecuentes en la población, especialmente en niños pequeños. Suelen circular entre la población en los meses de otoño e invierno –algunos virus también en primavera– y otros se presentan a lo largo de …

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