Omicron causes less severe disease than Delta, even in previously uninfected

The Omicron coronavirus variant causes less severe disease than the Delta strain even in those who are unvaccinated or who haven’t had a prior Covid-19 infection, a study from SA’s Western Cape province showed.

Still, with over a quarter of the population vaccinated and a prior infection rate of 70%-80%, there has been concern that that may be masking the danger presented by the variant. It found that 8% of people were hospitalised or died within 14 days of being diagnosed with Covid-19 in the Omicron-driven wave compared with 16.5% over the three earlier waves.

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