A toxin dangerous to humans may help E. coli fend off aquatic predators, enabling strains of E. coli that produce the toxin to survive longer in lake water than benign counterparts, a new study has found. Read more »
Scientists have reconstructed the genome of medieval strains of the pathogen responsible for leprosy by exhuming centuries-old human graves to investigate why the incidence of leprosy decreased after the Middle Ages. Read more »
New technology is paving the way for low-cost electronic devices that work in direct contact with living tissue inside the body. Read more »