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Articles on SARS-CoV-2

Displaying 21 - 40 of 337 articles

Workers prepare to greet passengers at the COVID-19 testing centre in the international arrivals area at Pearson Airport in Toronto on Jan. 26, 2021. THE CANADIAN PRESS/Frank Gunn

Why Canada doesn’t know how many COVID-19 cases are linked to travel

Recently announced travel restrictions are intended to curb the spread of COVID-19 variants. However, we need to do a better job of tracking arrivals into the country.
Albanian health department workers, wearing protective suits, collect chickens, in the village of Peze Helmes some 20 km from the capital Tirana, 23 March 2006, after the second case of H5N1 bird flu was discovered in Albania. Gent Shkullaku / AFP

The keys to preventing future pandemics

Ever since the 2001 SARS outbreak and H5N1 avian flu in 2003, we’ve developed tools to monitor diseases that transmitted from animals to humans. But what does a large-scale roll-out entail?
Health care workers and patients in the temporary outside area Steve Biko Academic Hospital created to screen and treat suspected Covid-19 cases in Pretoria. Alet Pretorius/Gallo Images via Getty Images

South African scientists who discovered new COVID-19 variant share what they know

Scientists have observed that 501Y.V2 has quickly become "dominant" among multiple variants that have been circulating in the South African population.
The new SARS-CoV-2 variant’s increased transmissibility is believed to come from a change in the spike protein, visible here in yellow under an electron microscope. National Institute of Allergies and Infectious Diseases

How to stay safe with a fast-spreading new coronavirus variant on the loose

The new SARS-CoV-2 variant is already spreading in the US and could be dominant by March, the CDC warns. Here's what that means for the masks you choose and how you practice social distancing.
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.
Getting vaccines to rural and hard-to-reach areas is critical for public health and ethical reasons. Hector Roqueta Rivero/Moment via Getty Images

The cold supply chain can’t reach everywhere – that’s a big problem for equitable COVID-19 vaccination

So far, the only COVID-19 vaccines authorized for use need to be kept frozen. But there are many places in the world that can't support a cold supply chain.

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