Todos os artigos de COVID-19 vaccines and variants
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The FDA advisory committee discussed vaccine safety, effectiveness of the current shots, potential seasonality of COVID-19 and more.
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Many questions remain about next steps for US vaccine policy. But the FDA advisory panel’s hearty endorsement of a single-composition COVID-19 vaccine represents a pivotal step.
The FDA is proposing an annual shot against COVID-19, signaling that a new approach is needed.
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The new bivalent boosters against COVID-19 have failed to halt omicron infections. However, new technologies are being developed that pave a way forward.
Millions of U.S. children between the ages of 6 months and 4 years will soon be eligible for COVID-19 shots.
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The FDA’s authorization of COVID-19 shots for children ages 6 months to 4 years will bring relief for millions of parents. Pending CDC endorsement, shots for this group will be available within days.
Viral surveillance and prediction may be key parts of figuring out what goes into a vaccine.
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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.
Given the Omicron variant has already spread beyond southern Africa, a ban on travellers from those countries will slow the spread and buy crucial time, but won’t stop this strain in its tracks.
Rapid antigen COVID-19 tests, designed for use at home, can show results in 15 minutes.
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Zoë McLaren, University of Maryland, Baltimore County
Making rapid antigen tests for COVID-19 cheaper and more accessible can catch the infectious cases before they spread and help everyone resume normal activities safely.
Vaccines against COVID-19 are the safest – and fastest – way to prevent the spread of variants.
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A 2015 paper on chicken virus evolution is being taken out of context and used to fuel fears about COVID-19 vaccines. Its lead author aims to clarify the science in hopes of saving lives.
Vaccination, masking and social distancing are tried and true ways to protect against COVID-19 infection.
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New variants of the COVID-19 virus may be more contagious and cause more severe disease than the original. A pediatrician and infectious disease specialist explains why.
Vaccines don’t ward off every single infection but they do massively lower the risk.
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Vaccines can’t provide 100% protection, so it’s not a failure or surprise when some vaccinated people get sick with COVID-19. The good news is their cases are much less likely to be severe or fatal.
Weeks do matter when it comes to the Delta strain. With Australia still heavily reliant on the AstraZeneca vaccine, for now it makes sense to reduce the time between the first and second jab.
Fiona Russell, The University of Melbourne; John Hart, Murdoch Children's Research Institute e Katherine Gibney, The Peter Doherty Institute for Infection and Immunity
The COVID-19 variant responsible for Victoria’s latest outbreak is one of three Indian variant sub-types, which spreads more easily than the original strain. Here’s what we know so far.
As the Indian variant becomes more prevalent within our borders, anti-South Asian sentiment is also growing, putting the community at a higher risk of hate crimes.