THE HAGUE, Netherlands (AP) \u2014 South African scientists are warning that reinfections among people who\u2019ve already battled COVID-19 appear to be more likely with\u2026<\/b>
\nTHE HAGUE, Netherlands (AP) \u2014 South African scientists are warning that reinfections among people who\u2019ve already battled COVID-19 appear to be more likely with the new omicron variant than with earlier coronavirus mutants. A research group has been tracking reinfections in South Africa and reported a jump with the arrival of omicron that they hadn\u2019t seen when two previous variants, including the extra-contagious delta variant, moved through the country. The findings, posted online Thursday, are preliminary and haven\u2019t yet undergone scientific review. Nor did the researchers say what portion of the reinfections were confirmed as omicron cases \u2014 or whether they caused serious illness. But the timing of the reinfection spike suggests that omicron \u201cdemonstrates substantial population-level evidence for evasion of immunity from prior infection,\u201d they wrote. \u201cPrevious infection used to protect against delta, and now with omicro,n it doesn\u2019t seem to be the case,\u201d one of the researchers, Anne von Gottberg of the University of Witwatersrand, said at a World Health Organization briefing on Thursday. The study also did not examine the protection offered by vaccination. Coronavirus vaccines trigger different layers of immune response, some to fend off infection and others to prevent severe disease if someone does become infected. \u201cWe believe that vaccines will still, however, protect against severe disease,\u201d von Gottberg said. Dr. Michael Ryan, the head of emergencies at WHO, said reinfection turns up in the nose but it doesn\u2019t necessarily translate into severe disease, while vaccines have generally shown to help protect the rest of the body. \u201cThe data we\u2019re really looking to see is going to be around severity of infection and whether or not the vaccines continue to protect against severe disease, hospitalization and death,\u201d Ryan said. \u201cAnd right now, there\u2019s no reason to suppose that they won\u2019t. We just haven\u2019t got the details yet.\u201d The newest variant was discovered just over a week ago by scientists in South Africa and Botswana, and it\u2019s now been found in multiple countries. Much remains unknown about the new variant, including whether it is more contagious, as some health authorities suspect, whether it makes people more seriously ill, and whether it can thwart the vaccine. But learning how much protection is provided by prior infection is important, especially in parts of the world where much of the population remains to be vaccinated. The study suggests \u201comicron will be able to overcome natural and probably vaccine-induced immunity to a significant degree,\u201d Paul Hunter, a professor of medicine at the University of East Anglia, said in a written response to the findings. Just how much \u201cis still unclear though it is doubtful that this will represent complete escape.\u201d ___ Follow AP\u2019s pandemic coverage at https:\/\/apnews.com\/hub\/coronavirus-pandemic Copyright \u00a9 2021 The Associated Press. All rights reserved. This material may not be published, broadcast, written or redistributed.<\/p>\n