Science

The problem with pausing a vaccine rollout

Interrupting a programme early leads to many more infections than one might naively estimate

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Science | 21 April 2021

Report shows dangerous levels of pollution in Cape Town’s rivers, vleis and estuaries

Quality of water bodies has declined over 40 years

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Science | 9 April 2021

Covid-19 has hit pregnant women hard

Researchers find higher rates of still births and maternal deaths

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Science | 7 April 2021

Should we have another tough lockdown? Not yet

Starting a lockdown too early or too late reduces the benefits but not the hardships

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Science | 31 March 2021

Top scientists slam government for not using AstraZeneca vaccines

“South Africa has squandered the opportunity to protect half a million of its most vulnerable citizens”

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Science | 26 March 2021

Leading research institute says there should be no new trials of hydroxychloroquine for Covid

The drug has failed to prevent or treat the disease, and it has lots of side-effects

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Science | 12 March 2021

Cape Town’s sewers offer clues to next Covid-19 wave

Waste treatment plants across the city are being monitored weekly

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Science | 10 March 2021

Ivermectin study boosts regulator’s court defence

The first substantial peer-reviewed clinical trial of the drug against Covid-19 finds no evidence that it is a wonder medicine

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Science | 8 March 2021

Covid-19: Scientists reveal good news about variant discovered in South Africa

If you have antibodies to the 501Y.V2 variant, you likely have protection against other strains of the virus

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Science | 4 March 2021

Johnson & Johnson vaccine looks excellent for South Africa in first published detailed analysis

Concern raised about missed production target, but Professor Glenda Gray says it’s a well-oiled company and they know what they have to do

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Science | 25 February 2021

A new vaccine is being tested in Cape Town: Here’s why it’s different

Scientists hope SARS-CoV-2 will be less likely to evade it

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Science | 18 February 2021

Why some scientists think the AstraZeneca vaccine is still useful for South Africa

While the results are disappointing against the local variant of the Covid-19 virus, there are reasons to think the vaccine may reduce deaths

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Science | 14 February 2021

Covid-19: Remarkable results from blood donor survey

For the four provinces analysed, over half the population has likely had a SARS-CoV-2 infection

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Science | 13 February 2021

Ivermectin and Covid-19: what we still don’t know

At the moment there isn’t enough evidence to justify using the drug for the treatment or prevention of SARS-CoV-2

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Science | 10 February 2021

Nearly all excess deaths are due to Covid-19

Lockdown restrictions are not responsible for massive increase in mortality

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Science | 1 February 2021

Excess deaths decline for first time since November

Mortality still near record high but it looks like we are turning the corner

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Science | 27 January 2021