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Observational study characterizes risks of multi-organ sequelae in a boosted population, suggesting reduced risks during Omicron variants.
The risks/rates of pre-specified new-incident multi-organ PASC were modest over all studied COVID-19 eras. The risk was further attenuated with booster vaccination during the Omicron BA.4/5 and XBB periods compared with the Omicron BA.1/2 period.
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Guo et al. (2026) studied this question.
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