Diseases and the Immune System.

Diseases and the Immune System. What is a disease? A disease is an complaint or sickness caused by a virus, bacterium or sponge that presents with certain symptoms and physical signs. There atomic chassis 18 many diseases that are present in our upstart day world and separately of these presents with specific symptoms and physical signs, which throw overboard doctors to make a diagnosing and treat the illness. Diseases include much(prenominal) things as measles, mumps, chicken pox, cholera, dys come outy, hepatitis A and poliomyelitis. many of these diseases merchant ship be dealt with by our bodies own disproof corpse of rules, only sometimes the organic structure needs help as it is unable to combat the disease and this is when doctors prescribe antibiotics and other medications How bacterium and viruses enter the human body. There are a spot of shipway in which diseases enter the human body. Bacteria and viruses merchantman be airborne(droplet) and enter t he body through with(predicate) our respiratory system eg the grippe or the common cold is often circularise when by someone sneezing. nigh of the virus is released into the air in droplet act and is then taken in by the respiratory system of other people in close barf hold of. Some diseases enter the body through regimen and water such as cholera and hepatitis A.

The food or water contains bacteria, which often comes from unclean treatment and when eaten or sot allows the bacteria to enter the body through the digestive system. Many gastrointestinal infections happen as a result of this. early(a) diseases can be spread through i nsects such as the mosquito. The person is b! itten by the insect and bacteria enter the bloodstream. An role model to this is malaria which is still common in many countries today. Some diseases are also spread through sexual contact such as HIV and hepatitis C. The final way... If you want to get a full essay, order it on our website: BestEssayCheap.com

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