People with malaria give off a distinctive “breath-print” that could be used as a test for the disease, according to American scientists.

They had already tried out a crude prototype breathalyser in Africa, a tropical medicine conference heard.

The test was reasonably good at detecting cases in children, but needs developing to become a routine device.

One of the odours it sniffs out is identical to a natural smell that attracts insects that spread malaria.

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