Some people believe that a dog's mouth is cleaner than a human's. While this may be true, which mouth is more dangerous to people?
A new study suggests it may not be the worst thing in the world to clean your baby's pacifier with your own saliva.
It's not a flattering likeness, but rats and humans actually have a lot in common, including physiology.
What do the Ebola virus, anthrax, and the avian flu have in common?
Unlike the mice and common rats used to test drugs and chemicals in labs, naked mole rats are hard to infect with disease.
Are there health risks associated with sleeping with your pet?
It's awful to get sick when visiting relatives or friends overseas. Make sure to read up on health risks before you travel!
Our bodies are also made up of living cells, the antibiotics have to distinguish between the cells in our bodies and the cells of the bacteria.
In 1928, Alexander Fleming was studying the bacterium, Staphylococcus, when some of the bacteria became contaminated with Penicillium...
Learn about how chemotherapy drugs work to fight cancer.