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Articles sur Coronavirus

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South Africa’s Minister of Health, Dr Zweli Mkhize (centre). The government has been criticised for not having an actionable plan on vaccines. Photo by Darren Stewart/Gallo Images via Getty Images

South Africa failed to get its act together on vaccines: here’s how

Critics of the South African government argue that it has done too little too late to secure vaccines, and that it doesn't have a proper plan in place for rollout.
B117, the SARS CoV-2 variant that was first detected in the U.K., has been found to be 30%-80% more transmissible. Juan Gaertner/Science Photo Library via Getty Images

What you need to know about the new COVID-19 variants

A biologist who studies the evolution of diseases explains what's different about the two new virus strains that have been found recently, and what that means for vaccine effectiveness.
Health-care workers wait in line at a COVID-19 vaccine clinic in Toronto on Jan. 7, 2021. THE CANADIAN PRESS/Nathan Denette

COVID-19 vaccine rollout: Why a mask and social distancing are still needed, even if you get the shot

Rollout of COVID-19 vaccines has begun. But getting the jab doesn't mean abandoning masks, distancing and handwashing. Here's why the current preventive measures must continue post-vaccine.
By mid-January, only about a quarter of the COVID-19 vaccines distributed for U.S. nursing homes through the federal program had reached people’s arms. Paul Bersebach/MediaNews Group/Orange County Register via Getty Images

The simple reason West Virginia leads the nation in vaccinating nursing home residents

West Virginia's success holds some important lessons for other states and the rest of the COVID-19 vaccine rollout.
The internet has made scientific research more available to the public and the media. (Shutterstock)

In the rush for coronavirus information, unreviewed scientific papers are being publicized

The peer-review process is an essential part to ensure the quality of scientific research, but the pandemic-driven demand for information means that research is publicized before it has been reviewed.
If too many Americans refuse to take the COVID-19 vaccine, achieving population immunity will be difficult. Paul Hennessy/NurPhoto via Getty Images

Americans have unrealistic expectations for a COVID-19 vaccine

Two in five Americans say they don't want a COVID-19 vaccine, which is a problem. Finding out what Americans do want from a vaccine might help.

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