Investigating rare diseases gives researchers more clues about how the healthy immune system functions.

Staph lives on skin. Thats the reason why many infections start as a boil.

Previous efforts to eradicate malaria failed for several reasons, including political instability and technical challenges in delivering resources, especially in certain countries in Africa.

The world is a place that is so interconnected that what happens in another part of the world will impact us.

The bodys immune system is like any other system of the body. Each of them have their vital function for the human host.

You can have an epidemic in a state. You can have it in a region. You can have it in a country where the critical level of disease passes a certain threshold and we call that an epidemic threshold.

You help someone's health, and you prevent them from infecting others.