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SARS-CoV-2

The COVID lab leak theory is dead. Here’s how we know the virus came from a Wuhan market

Image: Dake King/AP/AAP My colleagues and I published the most detailed studies of the earliest events in the COVID-19 pandemic last month in the journal Science. Together, these papers...

Should we be worried about our pet cats and dogs getting COVID?

Image: Imra the German Shorthaired Pointer The SARS-CoV-2 virus, which causes COVID, originated from bats and then, probably after passing through an intermediary host, gained the...

Why are there so many new Omicron sub-variants, like BA.4 and BA.5? Will I be reinfected? Is the virus mutating faster?

Image: Shutterstock By now, many of us will be familiar with the Omicron variant of SARS-CoV-2, the virus that causes COVID. This variant of concern has changed...

Could I have had COVID and not realised it?

Image: Unsplash It seems not a day goes by without learning someone in our inner circle of family, friends and colleagues has COVID. When we...

Here’s why you might need a 4th COVID vaccine dose this winter

Image: Achmad Ibrahim/AP/AAP When I began drafting this article, COVID cases in Australia were coming down and the situation was stabilising. New research released in February...

Taking COVID pills at home sounds great. But we need to use them wisely or risk drug resistance and new variants

Image: Shutterstock GPs can now prescribe antiviral pills for some of their vulnerable COVID-19 patients to take at home. More patients are expected to have access in coming weeks and...

15 things not to do when using a rapid antigen test, from storing in the freezer to sampling snot

Image: Shutterstock Many of us have taken a rapid antigen test (RAT) or have administered them to our school-aged children. But how many of us are...

COVID will soon be endemic. This doesn’t mean it’s harmless or we give up, just that it’s part of life

Image: Joan Mateu/AP/AAP We have experienced many bumps in the road since 2020 and one would have to be extremely brave to predict what the...

Planning a Christmas get-together? 8 tips to avoid a super-spreader event

Image: Shutterstock Not many more sleeps until Christmas, and all those long lunches and get-togethers with family and friends. If you’re hosting a gathering and want...

Omicron is the new COVID kid on the block: five steps to avoid, ten to take immediately

      What not to do: ban travel. Scenes at South Africa’s OR Tambo International airport after the first flight bans were announced. Phill Magakoe...
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