COVID-19: Understanding immunity and what it means for a vaccine

COVID-19: Understanding immunity and what it means for a vaccine

Immunity to COVID-19 is much more interesting and much more complicated than simply something you do or do not have. Kathryn Cleary spoke to two experts about what we know about COVID-19 immunity and the implications of that for antibody testing and the development of vaccines.

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Opinion: Despite significant challenges, SAHPRA is on the right track

Opinion: Despite significant challenges, SAHPRA is on the right track

Recently the South African Health Products Regulatory Authority was criticised for not approving laboratory-based SARS-CoV-2 antibody tests. Spotlight Editor Marcus Low argues that despite the regulator’s capacity constraints, its flexible conservatism is something to be grateful for.

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COVID-19: What is the risk from waste?

COVID-19: What is the risk from waste?

Are waste service workers becoming infected with SARS-CoV-2 through their work? Is handling household waste an occupational hazard? Are the precautionary measures introduced by municipalities sufficient? Professor Wolfgang Preiser explains the science and puts the risks in perspective.

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COVID-19: How PE waste pickers navigate lockdown and hunger

COVID-19: How PE waste pickers navigate lockdown and hunger

Hundreds of people daily search for recyclable materials to sell and food to eat at Arlington and Uitenhage waste disposal sites in Port Elizabeth. Luvuyo Mehlwana spoke to waste pickers about their fears of contracting COVID-19 from waste and to experts about the risks of this happening.

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A convenient untruth: The TB Proof healthcare worker

A convenient untruth: The TB Proof healthcare worker

We were told the planned release date for an occupational health policy to protect healthcare workers was World tuberculosis Day, 24 March 2017. Three World TB Days later and with a new epidemic claiming the lives of healthcare workers we are still waiting for the policy, writes Dr Arne von Delft.

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COVID-19: The science and policy calculous behind SA’s new mask recommendations

COVID-19: The science and policy calculous behind SA’s new mask recommendations

On Friday (10 April) Health Minister Dr Zweli Mkhize recommended that members of the public wear cloth facemasks of at least three layers. In so doing, Mkhize gave direction on an issue that has created much uncertainty. Dr Kerrin Begg unpacks the science and policy driving this decision.

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