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Artículos sobre COVID-19 variants

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Millions of U.S. children between the ages of 6 months and 4 years will soon be eligible for COVID-19 shots. FatCamera/E+ via Getty Images

At last, COVID-19 shots for little kids – 5 essential reads

The FDA’s authorization of COVID-19 shots for children ages 6 months to 4 years will bring relief for millions of parents. Pending CDC endorsement, shots for this group will be available within days.
Inhaled vaccine delivery could take on not only COVID-19, but also other respiratory infections, including tuberculosis. (Shutterstock)

Inhaled vaccine for COVID-19: The pandemic accelerated decades of research leading to jab-free vaccine now in human testing

An inhaled COVID-19 vaccine would go directly to where the body would use it: the mucosal surface of the airways. This could mean less waste and more benefit, lower costs and reduced side-effects.
Ontario Chief Medical Officer of Health Kieran Moore arrives to speak at a press conference at Queen’s Park on April 11, 2022. Ontario lifted most COVID-19 restrictions in March. THE CANADIAN PRESS/Nathan Denette

‘Living with COVID-19’ must be more than an empty phrase: Individuals need tools to manage BA.2 and future waves

Instead of minimizing current or future waves of COVID-19, we need strategies to deal with new variants efficiently. Only then can we live with the virus in a healthy way.
White-tailed deer are one of the few wild species that scientists have found to be infected with the coronavirus – at least so far. Andrew C/WikimediaCommons

Deer, mink and hyenas have caught COVID-19 – animal virologists explain how to find the coronavirus in animals and why humans need to worry

Scientists have been testing captive and wild animals for the coronavirus since the pandemic began. Only a few wild species are known to carry the virus, but many more have been shown to be susceptible.
New variants of SARS-CoV-2, the virus that causes COVID-19, arise through mutations when the virus replicates in an infected host’s cells. (NIAID, cropped from original)

How new COVID-19 variants emerge: Natural selection and the evolution of SARS-CoV-2

COVID-19 variants are the products of the evolution of the SARS-CoV-2 virus. They arise via mutations, but other forces also have roles to play in the generation and transmission of variants.
After South African scientists sounded the alarm about the new omicron variant, countries around the world closed their borders. Kim Ludbrook/EPA

South African scientists on the inside story of discovering omicron – and what their experience offers the world about future variants. Podcast

Plus, is the human emotional response to music innate or is it shaped by a person’s culture? Listen to The Conversation Weekly podcast.
Prime Minister Justin Trudeau gives a thumbs up signal after receiving his COVID-19 vaccine booster shot at a pharmacy in Ottawa on Jan. 4, 2022. THE CANADIAN PRESS/Sean Kilpatrick

Canada isn’t responding with foresight when it comes to COVID-19

Canada’s strategy must include global engagement. Without it, we will be living on borrowed time, waiting for a new variant, a new booster, a new quick fix.
The best way to stop new variants from arising is to increase the proportion of vaccinated individuals while maintaining infection prevention measures like wearing masks and social distancing. (Shutterstock)

Omicron: Vaccines remain the best defence against this COVID-19 variant and others

Even with a variant like Omicron that may be more transmissible than earlier variants, vaccines remain the most effective tool for protection against COVID-19 and for ending the pandemic.

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