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Articles on SARS-CoV-2

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Vaccinated people are wondering whether they can ease social distancing and mask-wearing. AP Photo/Darko Bandic

Can vaccinated people still spread the coronavirus?

You've been vaccinated; can you now safely see your friends and family? New research hints that vaccinated people may be less likely to transmit the coronavirus, but they are not 100% in the clear.
For many, distinguishing between fact and fiction is difficult. Olemedia/E+ via Getty Images

6 important truths about COVID-19 vaccines

With the vaccines now being administered at sites around the US, it is important to address misinformation surrounding the effort.
Fatigue, brain fog, breathing problems and many other COVID-19 symptoms can persist for months. Kyle Sparks via Getty Images

How many people get ‘long COVID’ – and who is most at risk?

'Long COVID' – in which people have symptoms lasting more than a few weeks – is turning out to be very common. People hospitalized for COVID-19 are at highest risk, but they aren't alone.
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?

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