At least 500 species of microbe lurk in the average gut, 500 in the mouth and another 500 in the vagina. A new project aims to log every one - and figure out how they contribute to disease. The swarms ...

The bug repellent DEET works by making mosquitoes and their brethren unable to smell the sweet aroma of human sweat that alerts them that a meal of blood is nearby, scientists said on Thursday. This ...

As far back as we know, animals have been home to microbes. Scientists have known for some time that these tiny tenants have the ability to make humans powerfully sick, while others are vital to ...