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COVID-19 – Articles, Analysis, Opinion

Displaying 51 - 75 of 343 articles

Viral surveillance and prediction may be key parts of figuring out what goes into a vaccine. Pexels Cover/500px via Getty Images

Future COVID-19 booster shots will likely need fresh formulations as new coronavirus variants of concern continue to emerge

A new generation of vaccines and boosters against SARS-CoV-2 may take a page from the anti-influenza playbook, with shots periodically tailored to target the most commonly circulating virus strains.
Social media sites like Twitter have been a major source of both true and false information regarding COVID-19 vaccines. MicroStockHub/iStock via Getty Images

Countries with lower-than-expected vaccination rates show unusually negative attitudes to vaccines on Twitter

A team analyzed more than 21 million tweets about COVID-19 vaccines and found that negative sentiments on social media were tied to lower-than-expected vaccination rates in many nations.
Researchers can test blood samples taken for other reasons to see if patients have previously had COVID-19. Don Bartletti/Los Angeles Times via Getty Images

COVID-19 official counts can miss mild cases – here’s how serosurveys that analyze blood for signs of past infection can help

Your blood can hold a record of past illnesses. That information can reveal how many people have had a certain infection – like 58% of Americans having had COVID-19 by the end of February 2022.
Dozens of coronavirus vaccines are in clinical trials in the U.S. Joao Paulo Burini/Moment via Getty Images

Will new vaccines be better at fighting coronavirus variants? 5 questions answered

Existing coronavirus vaccines are not as effective against newer variants of the virus. Two vaccine experts explain how new vaccines currently in development will likely offer better protection.
So much uncertainty around risk can make it extra hard to decide what to do. Richard Drury/DigitalVision via Getty Images

Pandemic decision-making is difficult and exhausting – here’s the psychology that explains why

People tend to dislike uncertainty and risk – two things that are hard to avoid completely during a pandemic. That’s part of why it can feel especially draining to make even small decisions these days.
From thalidomide to Viagra, drug repurposing salvaged failed treatments by giving them new targets. smartboy10/DigitalVision Vectors via Getty Images

Repurposing generic drugs can reduce time and cost to develop new treatments – but low profitability remains a barrier

Drug repurposing can redeem failed treatments and squeeze out new uses from others. But many pharmaceutical companies are hesitant to retool existing drugs without a high return on investment.
While the vast majority of primary care providers have higher confidence in vaccines than the general public, some do not. Evgeniy Shkolenko/iStock via Getty Images Plus

The 1 in 10 U.S. doctors with reservations about vaccines could be undermining the fight against COVID-19

Many COVID-19 vaccination campaigns encourage doctors to serve as a trusted source of vaccine information. But certain vaccine-hesitant providers may stymie these efforts.
A new brain-imaging study finds that participants who had even mild COVID-19 showed an average reduction in whole brain sizes. Kirstypargeter/iStock via Getty Images Plus

Even mild cases of COVID-19 can leave a mark on the brain, such as reductions in gray matter – a neuroscientist explains emerging research

New research offers insights into the brain after COVID-19 that may have implications for our understanding of long COVID-19 and how the disease affects our senses of taste and smell.