There appears to be a higher risk of catching COVID-19 again with the Omicron variant, according to a study by South African scientists that has not yet been peer-reviewed.
Researchers analysed 35,670 cases of reinfection out of nearly 2.8 million people who tested positive for COVID-19 in South Africa.
The risk of reinfection was much higher in November amid a surge in cases attributed to the newly identified Omicron variant.
"Population-level evidence suggests that the Omicron variant is associated with substantial ability to evade immunity from prior infection," the researchers said.
The World Health Organization had already warned that preliminary evidence showed a higher risk of reinfection with the new variant.
Scientists are working to
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