Older people more likely to catch Covid a second time

Study finds under-65s have about 80% protection from virus for at least six months but over-65s only 47%

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Older people who have recovered from Covid cannot assume they are immune from a second attack, according to a new study that shows the under-65s are much less susceptible to reinfection.

The study carried out in Denmark found that the under-65s had about 80% protection for at least six months from catching Covid a second time. But the over-65s had only 47% protection.