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Covid-19: Omicron infection is poor booster to immunity, study finds

People infected with the omicron variant show poor immunity boosting against future covid-19 infection, researchers have found. This may explain why breakthrough and repeat infections have been a common feature of the omicron wave of the pandemic, even among people who have been triple vaccinated, said the research team. Omicron is “an especially stealthy immune evader” said Danny Altmann, study coauthor from Imperial College London. “Not only can it break through vaccine defences, it looks to leave very few of the hallmarks we’d expect on the immune system,” he said. “It’s more stealthy than previous variants and flies under the radar, so the immune system is unable to remember it.”

The BMJ - June 15, 2022

View the full story here: https://www.bmj.com/content/377/bmj.o1474