PDA

View Full Version : Conatmination



drnguyenanhbinh
27-01-10, 10:46 PM
1. Contamination:

Contamination: (kәn-tam″ĭ-na´shәn) the soiling or making inferior by contact or mixture, as by introduction of organisms into a wound.
the deposition of radioactive material in any place where it is not desired, especially where its presence may be harmful or constitute a radiation hazard.
2. Infection
An infection is the detrimental colonization of a host organism by a foreign species. In an infection, the infecting organism seeks to utilize the host's resources to multiply, usually at the expense of the host. The infecting organism, or pathogen, interferes with the normal functioning of the host and can lead to chronic wounds, gangrene, loss of an infected limb, and even death. The host's response to infection is inflammation. Colloquially, a pathogen is usually considered a microscopic organism though the definition is broader, including parasites, fungi, viruses, prions, and viroids. A symbiosis between parasite and host, whereby the relationship is beneficial for the former but detrimental to the latter, is characterised as parasitism. The branch of medicine that focuses on infections and pathogens is infectious disease. "When infection attacks the body, anti-infective drugs can help turn the tide of battle. Four types of anti-infective drugs exist: antibacterial, antiviral, antitubercular, and antifungal.

hoanganh_89
27-01-10, 11:58 PM
Theo Stedman dictionary:

Contamination:
1. The presence of an infectious agent on a body surface; also on or in clothes, bedding, toys, surgical instruments or dressings, or other inanimate articles or substances including water, milk, and food or that infectious agent itself.
2. In epidemiology, the situation that exists when a population being studied for one condition or factor also possesses other conditions or factors that modify results of the study.

Infection:
Invasion of the body with organisms
or Invasion by and multiplication of pathogenic microorganisms in a bodily part or tissue, which may produce subsequent tissue injury and progress to overt disease through a variety of cellular or toxic mechanisms.

reference: http://www.healthhype.com/infection-definition-causes-transmission-symptoms-signs.html

Tóm lại contamination ~ dơ/nhiễm/sạch nhiễm.
Infection ~ sự xâm nhập cuả SV/vi SV vào cơ thể.

--------------------------------------------------------------
Hero - Enrique Iglesias (http://music.yeucahat.com/song/English/745-Hero~Enrique-Iglesias.html)