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.
The Johnson & Johnson vaccine only requires one dose.
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The Johnson & Johnson vaccine is different from the Moderna and Pfizer vaccines in a few important ways that could make it a huge help to global vaccination efforts.
Much has been said of the politics surrounding the mission to investigate the viral origins of COVID-19. So it's easy to forget that behind these investigations are real people.
For many, distinguishing between fact and fiction is difficult.
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'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.
The rapid increase in the number of infections is the most obvious reason why new variants of the virus have been emerging recently. Case numbers doubled in just two months at the end of 2020.
A nurse holds a dose of the Pfizer/BioNTech COVID-19 vaccine.
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These variants are definitely cause for concern. But there's every indication we can adapt our vaccine strategy to combat these and other variants going forward.
A bat virus discovered a decade ago in Cambodia indicates that pangolin trafficking remains a credible explanation for the origin of the Covid-19 pandemic.
Check your mask for fit, filtration and breathability.
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The virus is evolving and new strains are more transmissible. Will the vaccines work against these new variants? How can researchers stay ahead of the virus's evolution?
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.
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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.
Getting vaccinated often means pre-registering, then registering, then arranging an appointment and standing in line.
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Getting pharmacies more involved could be a game changer, particularly for reaching minorities, older adults without internet access and others left behind.
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
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?
After a second dose of the COVID-19 mRNA vaccine, a swarm of antibodies attacks the virus.
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Professor and Director of Quantitative Biosciences Institute & Senior Investigator at the Gladstone Institutes, University of California, San Francisco
Professor of Chemistry and Biochemistry and President-Elect of the International Society for Antiviral Research, University of Maryland, Baltimore County