Slightly Odd

Parents who look after their children at home rather than send them to playgroups may be increasing their chances of developing leukaemia by 30 per cent, according to research published today.

The thought is that exposure to the various childhood ailments primes the immune system, making it less likely to go out of control (ie, one of the types of leukaemia) later on when it meets an infection.

Fair enough: but I thought we already accepted that at least certain types of childhood leukaemia were in fact caused by viral infections? Thus greater exposure should lead to a higher risk?

Oh well, way beyond my pay grade here.

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