Necator americanus, the New World hookworm, is as long and thin as a vermicelli noodle. It will slip under your skin and travel through the blood to your trachea, where you will swallow it and give it a free ride to your small intestine. Upon arrival, it will open its tiny jaw, dig its teeth into your intestinal wall and begin to drink your blood.
And it could be the key to making millions of people healthier.
Writing in the journal Science Translational Medicine on Wednesday, scientists report that a protein produced by hookworms eases the symptoms of asthma in mice - and could one day be made into a pill to treat humans.
The study is the latest from a surprising...