Infection Essay

Infection is the establishment of a pathogen in its host after invasion. Also is state produced by the establishment of an infective agent in or on a suitable host and this germ or pathogen is referred to as a parasitic organism. They are with the host in in anticipation of feeding on them. Infection is the process in which bacteria, viruses, and parasites invaded and multiply in the body. These foreign object are not normally visible within the body. An infection may cause no symptoms and be subclinical or it may cause symptoms and be clinically apparent. Infection may evade or overcome the body 's natural defenses at each step that had contact with the host. Infections have the potential to cause illness, but in many cases the infected person

Pseudomonas: The germs live in soil, water and on the skin, and are rare. But cause problem for people who have weak immune systems or who are in hospital for some time.

Clostridium difficile: This infection is most common in people who are already on antibiotics. Certain bacteria can live normally in the bowel in just the right numbers to keep it healthy.

Escherichia coli: (E. coli) infections also affect the gut causing diarrhea and fever

Listeria monocytogenes: The infection is caused by eating contaminated food. It is rare, but can be serious if caught by pregnant women, unborn or newborn babies, elderly people, or those with a weak immune system.

VIRUSES

Viruses can only grow and reproduce inside other living cells called their host. Most viruses cannot survive very long outside their host cell. When viruses enter our body they can multiply and cause illnesses. Common cold viruses occur often in healthy people and do not usually cause major problems. But these viruses can cause serious infections, such as pneumonia, in people whose immune systems are weak.

Common cold viruses

Herpes