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Todos os artigos de Virology

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Bacteriophages are viruses that infect bacteria and play a potential role in the evolution of life. NANOCLUSTERING/SCIENCE PHOTO LIBRARY/Science Photo Library via Getty Images

Viruses are both the villains and heroes of life as we know it

Viruses have gotten a bad rap for the many illnesses and pandemics they’ve caused. But viruses are also genetic innovators – and possibly the pioneers of using DNA as the genetic blueprint of life.
In February 2021, a World Health Organization team investigating the origins of COVID-19 visited the Wuhan Institute of Virology in Wuhan, China. Hector Retamal/AFP via Getty Images

Why gain-of-function research matters

The research community is taking a closer look at the lab-leak hypothesis for the origin of COVID-19, prompting discussion about the risks and benefits of engineering viruses.
People wearing masks walk in front of Pfizer’s headquarters in New York City. Pfizer and BioNtech are on track with a vaccine that is 90 per cent effective, say preliminary results, but they are not the only ones in the race. AP Photo/Bebeto Matthews

COVID-19 vaccine update: Pfizer may be the frontrunner, but Canada has hedged its bets

Canada has set aside a total of 414 million doses of different types of vaccine. Some exploit known mechanisms, others are based on previously untested approaches.
A pandemic from a century ago doesn’t necessarily chart the course of the pandemic happening now. National Photo Company Collection/Library of Congress Prints and Photographs Division/Library of Congress Prints and Photographs Division

Compare the flu pandemic of 1918 and COVID-19 with caution – the past is not a prediction

Differences in the viruses’ biology and societal contexts mean there’s no guarantee today’s pandemic will mirror the ‘waves’ of infection a century ago.

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