The findings of a large, continuing study have shown that two-thirds of people recently infected with the Omicron variant say they had COVID-19 previously. The study, React, which swab-tests thousands of volunteers in England, still requires some more work to know how many are true reinfections.
However, results are revealing the groups of people which are more likely to contract the virus again. These also include healthcare workers and households with kids or lots of members under one roof. More than two million people have been tested in the study, with the latest findings based on 100,000 PCR tests posted to volunteers and then returned.
About 4,000 were positive, one of the highest rates since the pandemic began. When a selection of them were sequenced to check which type of COVID was the culprit, almost all were Omicron. Two out of every three (65%) of the infected volunteers said they had already previously tested positive for COVID. There could be instances where the latest PCR might be picking up old virus traces. Other estimates suggest one in every 10 Omicron case is a possible reinfection.
UK’s health security agency chief executive Dr Jenny Harries said that although vaccines may not stop every infection, they were doing a great job at protecting lives.
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