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Science Talk
Positivity can strengthen immunity
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Sean Lee and Andree Hartanto
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In the laboratories of Carnegie Mellon University some years ago, 95 men and 98 women volunteered to have live cold and flu viruses sprayed directly into their noses.
Yet, not everyone succumbed to these viruses. Only 32.1 per cent of those infected by the virus developed a full-blown clinical illness, and 18.7 per cent of these volunteers did not develop an infection at all.
