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If you've had COVID, side effects may be worse with 1st dose

Esselen Reza, right, receives a dose of the Pfizer COVID-19 vaccine at the Banning Recreation Center in Wilmington, Calif., on April 13. People wh have had COVID-19 may feel stronger side effects after the first dose rather than second compared with people with no infection history. (Marcio Jose Sanchez | AP) It’s a tale as old as time, or at least as old as the nation’s first coronavirus shot side effects after COVID-19 vaccination are normal and a sign your body is building a defense against the disease. The reaction makes sense, experts say, given your body is exposed to a portion of a shiny new germ never before seen in humans. But how does the side effect experience compare for those who already had COVID-19?

SARS-CoV-2 spike E484K mutation reduces antibody neutralization

SARS-CoV-2 spike E484K mutation reduces antibody neutralization Caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pathogen, the coronavirus disease 2019 (COVID-19) pandemic continues to wreak havoc globally. Meanwhile, scientists race to develop therapeutics and vaccines to mitigate its severity and control its spread. However, faster spreading and potentially more fatal SARS-CoV-2 variants have undermined efforts to turn the tide of the pandemic. Researchers at the Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, USA, showed that the SARS-CoV-2 spike E484K mutation reduces antibody neutralization. Their findings have been published in Study background More than a year into the COVID-19 pandemic, the virus continues to spread, with new variants emerging. To date, three variants are of particular concern:  the B.1.1.7 or the United Kingdom variant, the B.1.351 or the South African variant, and the P.1 or the Brazilian variant

LankaWeb – Do you still need a vaccine if you've already had COVID?

18 Healthcare Augmented Reality and Virtual Reality Companies to Watch

18 Healthcare Augmented Reality and Virtual Reality Companies to Watch Defining Augmented Reality Augmented reality is a technology that blends real-world elements with virtual ones. For example, a person might visit a trade show and aim their smartphone at a display to activate an AR experience that allows them to see a computer-generated version of a product. This approach is particularly useful for getting people excited about prototypes or helping them understand the potential of any item not yet finalized.  AR vs. VR: What’s The Difference? Virtual reality is another buzz-worthy technology that continues to capture attention and fascinate people in the medical sector and outside of it. Although VR and AR have some similarities, they’re not the same. 

LankaWeb – Do you still need a vaccine if you've already had COVID?

Posted on February 17th, 2021 Catriona Harvey-Jenner courtesy msn.com Somewhat promisingly, the UK COVID-19 vaccination roll-out seems to be going well. More than 15 million people have received their first vaccination, and we’re currently on track for all adults to have received their first dose by early summer (you can find out  © retales botijero – Getty Images But you may need less of it. The typical dose for most COVID-19 vaccinations is two, but those who’ve previously been infected may need less, suggests a study. The whole point of getting the vaccine is to give you immunity against coronavirus, but if you’ve already had COVID-19, it figures that you should have that immunity already. So do you still need the vaccine, even after having had coronavirus? Well, yes is the long and short of it. But the number of doses you need might be different.