The WHO said, preliminary evidence suggests there is an increased risk of re-infection and there had been a detrimental change in COVID-19 epidemiology. It said infections in South Africa had risen steeply in recent weeks, coinciding with detection of the variant now designated as omicron. This variant has a large number of mutations, some of which are concerning. Preliminary evidence suggests an increased risk of re-infection with this variant, as compared to other (variants of concern), the WHO added.
The WHO said, this variant has been detected at faster rates than previous surges in infection, suggesting that this variant may have a growth advantage. Current PCR tests continue to successfully detect the variant, it said.
Earlier, the WHO cautioned countries against hastily imposing travel restrictions linked to the variant of COVID, saying they should take a risk-based and scientific approach.
