Researchers have discovered that a key chemical found in
sweat is what attracts the mosquito that spreads malaria in
Africa to bite its human victims. With this knowledge,
scientists believe that they can develop a range of new
anti-mosquito sprays and traps. Only the female mosquito
bites people, and can identify a human victim largely using
its sense of smell even up to hundreds of metres away.
There are at least 300 million acute cases of malaria each
year globally, resulting in more than a million deaths.
Around 90% of these deaths occur in Africa, mostly in young
children.

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