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Coronavirus

Omicron Guidance For The World From A South African Epidemiologist

A South African researcher of infectious disease sees specific steps that governments should and shouldn’t be taking in light of the new COVID-19 variant Omicron.

Photo of a quarantined traveler looking out the window of a hotel at Amsterdam's Schiphol airport

Passenger of a flight from South Africa quarantined at a hotel in Amsterdam

Shabir A. Madhi

South Africa reacted with outrage to travel bans, first triggered by the UK, imposed on it in the wake of the news that its genomics surveillance team had detected a new variant of the SARS-CoV-2 virus. The Network for Genomics Surveillance in South Africa has been monitoring changes in SARS-CoV-2 since the pandemic first broke out.

The new variant – identified as B.1.1.529 has been declared a variant of concern by the World Health Organisation and assigned the name Omicron.

The mutations identified in Omicron provide theoretical concerns that the variant could be slightly more transmissible than the Delta variant and have reduced sensitivity to antibody activity induced by past infection or vaccines compared to how well the antibody neutralises ancestry virus.

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Society

Return To Clay: Why An Ancient Building Material Is Back In Fashion

Concrete and glass are often thought of as the only building materials of modern architecture. But Francis Diébédo Kéré, the first African winner of a prestigious Pritzker architecture prize, works with clay, whose sustainability is not the only benefit.

Francis Diébédo Kéré extended the primary school in the village of Gando, Burkina Faso

Clara Le Fort

"Clay is fascinating. It has this unique grain and is both beautiful and soft. It soothes; it contributes to well-being..."

Francis Diébédo Kéré, the first African to be awarded the prestigious Pritzker Prize last March, is paying tribute to clay. It's a material that he adores, which has too often been shunned and attributed to modest constructions and peasant houses. Diébédo Kéré has always wanted to celebrate "earthen architecture”: buildings made out of clay. It's a technique that has been used for at least 10,000 years, which draws on this telluric element, known as dried mud, beaten earth, rammed earth, cob or adobe.

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