Tag Archives: SARS-CoV-2

Hybrid immunity: a combination of vaccination and prior infection probably offers the best protection against COVID

Kateryna Kon/Shutterstock Grace C Roberts, University of Leeds and Lena Glaser, Queen’s University Belfast When we’re exposed to a pathogen such as a virus, our immune system identifies it as a foreign invader and mounts an attack. This ultimately results in the formation of antibodies which can neutralise the invading pathogen next time we encounter it. It’s a complex process. …

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La pandemia desde una mirada infantil

Nahia Idoiaga Mondragon, Universidad del País Vasco / Euskal Herriko Unibertsitatea; Amaia Eiguren Munitis, Universidad del País Vasco / Euskal Herriko Unibertsitatea; Maitane Picaza Gorrotxategi, Universidad del País Vasco / Euskal Herriko Unibertsitatea; María Dosil-Santamaría, Universidad del País Vasco / Euskal Herriko Unibertsitatea; Naiara Berasategui Sancho, Universidad del País Vasco / Euskal Herriko Unibertsitatea; Naiara Ozamiz Etxebarria, Universidad del País …

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Por qué aún no tiene sentido vacunar a los niños frente a la COVID-19

Shutterstock / Drazen Zigic Sergio Flores Villar, Hospital Universitario Mútua de Terrassa El porcentaje de la población mundial que ha estado en contacto con el virus SARS-CoV-2, medido a través de la seroprevalencia, ronda el 5,2% de la población, mientras que en la franja de edad que va de recién nacidos hasta los 19 años corresponde a un 1,56%. En …

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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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