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#Disease

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
Syringe and a screen displaying the main SARS-Cov-2 variants : Alpha, Beta, Delta, Gamma and Omicron. Photo: Lionel Bonaventure / AFP
Syringe and a screen displaying the main... […]

Delta still dominates say experts urging third jab

No one knows how effective vaccines will be in stopping the Omicron variant of Covid-19, but while Delta remains the dominant strain experts are urging people to take advantage of booster jabs where they are available
Microscopic view of SARS-CoV-2 virus (round blue objects) emerging from the surface of cells cultured in a laboratory. Photo: National Institutes of Health / AFP
Microscopic view of SARS-CoV-2 virus (ro... […]

What is known so far about new Covid variant Omicron

South African scientists have discovered a new Covid-19 variant, Omicron, with multiple mutations that is thought to be highly contagious. This is what is known so far about the Omicron variant.