Disease resistance

Disease resistance

Disease resistance (pronunciation: /dɪˈziːz rɪˈzɪstəns/) is the ability of an organism to resist or withstand infection by a pathogen, including bacteria, viruses, parasites, and fungi.

Etymology

The term "disease resistance" is derived from the Latin disease meaning "lack of ease" and resistance meaning "to stand against".

Types of Disease Resistance

There are two main types of disease resistance:

1. Innate Disease Resistance: This is the natural immunity that an organism is born with. It is a non-specific type of defense that is present at birth.
2. Adaptive Disease Resistance: This is a specific type of immunity that an organism develops over time in response to exposure to specific pathogens.

Related Terms

• Immunity: The ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
• Pathogen: A bacterium, virus, or other microorganism that can cause disease.
• Antibody: A blood protein produced in response to and counteracting a specific antigen. Antibodies combine chemically with substances that the body recognizes as alien, such as bacteria, viruses, and foreign substances in the blood.
• Antigen: A toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.

External links

• Medical encyclopedia article on Disease resistance
• Wikipedia's article - Disease resistance

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