Definition: A pathogen is a biological agent – such as a bacterium, virus, fungus, parasite or prion – that can cause disease in a host organism. In simple terms: a pathogen is an infectious microbe ...

Responsibility for public health protection from communicable diseases exists at three government levels in the U.S. (federal, state/tribe, and local/municipal), with states having the authority to ...

Doctors weigh in about the potential disease risks of a major international event like the World Cup.

Epidemics and pandemics of new diseases arise in two stages. Firstly, the zoonotic spillover event introduces the infectious organism, in the main a virus, into the human population from an animal ...

Progress in the battle against non-communicable diseases like heart disease and cancer, which are the leading cause of death globally, has slowed, the World Health Organization warned Thursday. The UN ...

Infectious diseases are common worldwide. Your immune system is able to fight most germs that you grew up with. If you've been deployed abroad, you may have encountered some germs you're not used to.

A virus is a sneaky little bugger whose goal is to get inside your body. When it does enter your body it finds a normal cell to infect. Once it’s inside the cell, the virus will create newly copied ...

Schlesinger is a physician-scientist and professor, president, and CEO of Texas Biomedical Research Institute, a nonprofit research organization in San Antonio, Texas. The connection between infection ...