Hindustan Times (Chandigarh)

CROSS IMMUNITY

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Other research has also found that coronaviru­ses such as this one activate T-cells with long-lasting memory, which means that people who may have been infected with Sars-cov-1 in 2003 could still have T-cells that could actually help protect them from Sars-cov-2. This cross immunity could explain why some people are either immune already, or react differentl­y from others

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