Bacterial Infection; Infections, Bacterial 


Bacterial infections are caused by the presence and growth of microorganisms that damage host tissue. The extent of infection is generally determined by how many organisms are present and the toxins they release. Worldwide, bacterial infections are responsible for more deaths than any other cause.

In medicine, infectious disease or communicable disease is disease caused by a biological agent (e.g. virus, bacterium or parasite), as opposed to physical (e.g. burns) or chemical (e.g. intoxication) causes.

Bacterial Infections as related to Infectious Diseases