(AP) — South African scientists are warning that the new omicron variant may be causing more reinfections among COVID-19 survivors than earlier virus mutants.
A research group has been tracking reinfections in South Africa. They spotted a jump with the arrival of omicron, saying the timing suggests “substantial” evidence that this mutant can escape the protection of a prior infection more than the extra-contagious delta variant.
The findings are preliminary, posted online before scientific review. The study didn’t examine the question of how much protection vaccines still offer.