Friday, August 7, 2015

Infection in Living beings

 Organisms that can cause sickness are present all around us; in air, water, soil, food and in the bodies of other animals and plants. Therefore when some of these harmful organisms pass through the body of a living being, it resulted in infection in that body.
Infection is the diseased condition found in both animals and plants. When harmful micro organisms e.g bacteria, viruses enter the tissue of victim and get multiply. Such micro-organisms are mostly unicellular ; bacteria, viruses and protozoans. Other than these, many kinds of fungus, worms and arthropods.
Trees are often become infected when the bark is damaged by grazing animals or through loss of branches. Spores enters in trees and cause deformities, fruit loss or even death also. Infection also occurs when the roots become damaged and allow soil born organism to enter in the body.
Infection in animals can be caused by wounds and injuries. Some kinds of infection in human beings are passed through the tiny droplets of water that are produced in result of sneezing. The common cold is transmitted to another person in this way.The common cold is caused by a virus which infects the cells of our mouth, nose and throat. Some infection need proper medical treatments and some are cured by the victim's own defense mechanism. 

The ways of transmission of infection in a body:

Air born transmission:

Infection caused by the tiny droplets  that are present in the air from the nose, saliva or dust particles.

contamination:

Infection that is caused by the food and water containing infected materials e.g faeces or urine.

Direct contact:

Infection through the close contact with an infected body. Usually skin infection caused by direct contacts.

Blood Born Transmission:

Infection that passed through the injection of contaminated blood and blood products or by the use of improper sterilized instruments. 

Animal born Transmission:

Infection by the contaminated   saliva, for example, Malaria that is carried through the mosquito's bites and bubonic plague that transmitted through the flea bites

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