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#COVID-19

A nurse goes to check on a Covid-19 patient in the intensive care unit of the Timone hospital in Marseille, southern France on January 5, 2022. Photo: Nicolas Tucat / AFP
A nurse goes to check on a Covid-19 pati... […]

Omicron less severe but still a threat to health systems

Omicron is causing record numbers of cases around the world, and though it causes less severe Covid-19 experts warn this wave still threatens to overwhelm health systems
Europe's medicines watchdog has approved a Covid jab by Novavax, which uses a more conventional technology that the biotech firm hopes will reduce vaccine hesitancy. Photo: Justin Tallis / AFP
Europe's medicines watchdog has approved... […]

The technology behind Covid jabs

How do the different vaccines work against Covid-19? The WHO has authorised the use of Novavax's Nuvaxovid, a subunit vaccine that contains a purified piece of the virus to trigger an immune response