There are many places, organs or tissues where these microorganisms could go. Symptoms tell us about the target organ infected. Malaria causing microbes, entering through a mosquito bite, will go to the liver, and then to the red blood cells.
The signs and symptoms of a ** will depend on the tissue or organ which microbe targets. If the liver is targeted, there will be jaundice. If the brain is the target, we will observe headaches, vomiting, fits or unconsciousness. An active immune system recruits many cells to the affected tissue to the **-causing microbes. This recruitment process is called inflammation. The severity of ** manifestations depend on the number of microbes in the body. The immune system is a major factor that determines the number of microbes surviving in the body.
Principles of treatment and Prevention:
There are two ways to treat an infectious **. One would be to reduce the effects of the ** and the other to cause of the **. Antibiotics are the drugs used to treat the ** caused by bacteria, fungi and protozoans. e.g. penicillin. Anti-viral drugs are the medicines used to treat ** caused by viruses. These drugs are difficult to be prepared when compared to anti-bacterial drugs. Despite this limitation, there are now effective anti-viral drugs, for example, the drugs that keep ** infection under control.
There are two ways one general and one specific to prevent ****. The general ways of preventing infections mostly relate to preventing infections. Airborne micro-organisms can be prevented by providing living conditions which are not over crowded. Water-borne microorganisms can be prevented by providing safe drinking water. Vector-borne **** can be prevented by providing clean environment. Public hygiene is one basic step in the prevention of infectious ****. Availability of proper and sufficient food can prevent infectious ****. Immunization through vaccines is specific way of preventing ****. Eg: vaccines against tetanus, diphtheria, whooping cough, measles and polio etc.
