Previous Covid infection may not offer long-term protection, study finds

Research found marked differences in immune response of medical staff six months after contracting virus

Previous infection with coronavirus does not necessarily protect against Covid in the longer term, especially when caused by new variants of concern, a study on healthcare workers suggests.

Researchers at Oxford University found marked differences in the immune responses of medical staff who contracted Covid, with some appearing far better equipped than others to combat the disease six months later.

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