South Africa’s Minister of Health, Dr Zweli Mkhize (centre). The government has been criticised for not having an actionable plan on vaccines.
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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.
New variants will push the number needed to reach herd immunity up.
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
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
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.
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Tinglong Dai, Johns Hopkins University School of Nursing
West Virginia's success holds some important lessons for other states and the rest of the COVID-19 vaccine rollout.
COVAX aims to accelerate the development and manufacture of COVID-19 vaccines and guarantee access to all countries.
Photo illustration by STR/NurPhoto via Getty Images
In our first weekly update on COVID vaccines, we consider how roll-out plans are being tweaked and when it's likely we'll start to see vaccines having an impact.
Dryvax, smallpox vaccine with bifurcated needle.
James Gathany Content Providers/CDC Public Health Image Library
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.
The best approach for protecting everyone’s health will require us to provide different vaccines to different people according to need and availability.
Some sports facilities are both a point of civic pride and a financial burden on taxpayers. The COVID-19 pandemic will further impact the way these facilities are constructed and managed.