Science

Covid-19: Companies sell unnecessary “deep cleans” with exaggerated claims

Regular cleaning with standard household products is sufficient

By Natasha Bolognesi - 6 July 2020

Do poorer communities have fewer plant and animal species?

A new study confirms that the “luxury effect” is real

By Sarah Wild - 23 June 2020

Covid-19: Making sense of “R”

It’s a useful but much misunderstood concept for explaining the course of the epidemic

By Max Price - 19 May 2020
Graph of decrease in NO2

Enjoy the fresh air while it lasts! Lockdown causes drop in SA air pollution

This may be little comfort to people facing hunger or crippling job losses because of the lockdown, but air pollution is nevertheless a major global killer

By Tony Carnie - 8 May 2020
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Tim Noakes interview is dangerously misleading

And it contains elementary errors

By Nathan Geffen - 13 April 2020
Photo of people wearing masks

Covid-19: Come on South Africa, let’s make masks

Home-made masks can help protect us from the virus

By Heather Zar - 10 April 2020
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Covid-19: What do South Africa’s numbers mean?

We explain confirmed cases, death rates and more

By Marcus Low and Nathan Geffen - 8 April 2020
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Beware these fake claims about Covid-19

We debunk nonsense being spread about the pandemic

By GroundUp Staff - 6 April 2020
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How many people could die of Covid-19 in South Africa?

Researchers estimate deaths based on Chinese and Italian data. But we can take action to stop the worst outcomes

By Nathan Geffen - 29 March 2020
Photo of laboratory test equipment

Covid-19: Why testing takes time and what to expect

There’s a lot more going on behind the scenes in the testing labs than most patients realise

By Fatima Khan - 25 March 2020
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Covid-19: Why “test, test, test” is easier said than done

Both money and logistics are barriers to scaling up the number of tests for the novel coronavirus

By James Stent and Nathan Geffen - 17 March 2020
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Hope for HIV vaccine being tested in South Africa

While it’s too soon to be confident, a vaccine originally tested in Thailand has shown promising early results

By Elsabé Brits - 20 September 2019
Graphic of climate maps

Ambitious plans underway for homegrown South African climate change model

“We should not just sit and wait for others to bring us solutions. We should be part of the solution.”

By Tony Carnie - 29 July 2019
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HIV drug studies offer patients more choices

But new regimens are not problem-free

By Nathan Geffen - 26 July 2019
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South African researchers develop quicker way to detect drug resistance

Local man develops resistance to new TB medicine despite good adherence

By Elsabé Brits - 10 July 2019
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Quack claims about oxygen treatment are dangerous

Charlatans exploit patients for financial gain, say doctors

By Natasha Bolognesi - 15 March 2019