Bacterial Pathogenesis

ABSTRACT

If a microorganism either harms or lives at the write off of another organism, it is c aloneed a parasitic organism and the relationship is called the parasitism. In this relationship the infected organism is referred to as boniface.

Those organisms capable of do distemper argon called pathogens. Disease is any change in the forces from a healthy to an unhealthy,abnormal statein which part or all of the hosts body is not capable of carrying on its normal functions.

The steps of the infecting plow involving bacterial disease commonly include the following :
* The bacterium is transmitted to suitable host ,
* Attaches to and/or colonises the host,
* Grows and multiplies inside or on the host
* Interferes with or impairs the normal physiological activities of the host

During coevolution with human hosts,pathogenic bacteria have evolved interlinking signal transduction pathways to regulate the genes necessary for virulence.
The genes that encode virulence factors are often located on large segments of DNA within bacterial genome.called pathogenecity islands that carry genes responsible for virulence.

Two distinct categories of disease can be recognised based on the eccentric bacteria play in disease causing process :
* Infections(invasion and growth)
* intoxications .





Toxins produced by pathogenic bacteria are either exotoxins or endotoxins.
Viruses and bacteria are continuously evolving and producing unique mechanisms that enable them to fudge the hosts arsenal of defences.

The modern era of chemotherapy began with capital of Minnesota Ehrlischs work on drugs against affrican sleeping sicknessand syphills.
Other pioneers were Gerhard Domagk, horse parsley Flemming, Howerd Florey etc.

Many infectious diseases are treated with chemotherapeutic agent, much(prenominal) as antibiotics, that inhibit or kill the pathogen while harming the host as little as possible.

Ideally, antimicrobic agents disrupt microbial processes or structures that differ from...If you want to get a broad(a) essay, order it on our website: Orderessay



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