A chronic disease has slow onset and runs sometimes for year. The gradual onset and long course of TB makes it a chronic ailment. On the basis of their occurrence diseases are of two types: These diseases occur due to gene or chromosomal mutations, e.
Colour blindness, thalassemia etc. Detailed study is given in human genetics chapter. Acquired diseases which are caused by pathogens from infected persons to healthy one are infectious diseases. Acquired diseases are of two types —. Communicable diseases Infectious are those that can be passed among persons such as by means of airborne droplets from a cough or sneeze. Tiny organisms such as bacteria and fungi can produce infectious diseases.
So can tiny worms. Whatever the causative agent might be, it survives in the person it infects and is passed on to another or its eggs are passed on. Sometimes, a disease-producing organism gets into a person who shows no symptoms of the disease.
The symptomatic carrier can then pass the disease on to someone else without even knowing he has it. Tiny organisms such as viruses, bacteria, fungi and worms can produce infectious diseases. Whatever the causative agent, it services in the person it infects and is passed on to another. Sometimes, a disease-producing organism gets into a person who shows no symptoms of the disease.
The asymptomatic career can then pass the disease on to someone else without even knowing he has it. Non-infectious, or non-communicable diseases are caused b malfunctions of the body. These include organ or tissue degeneration, erratic cell growth, and faulty blood formation and flow. Also included are disturbances of the stomach and intestine, the endocrine system, and the urinary and reproductive systems. Deficiency diseases are due to deficiency in the diet of a nutrient.
They can generally be cured by providing the missing nutrients. Iron deficiency causes hemoglobin deficiency in blood. Vitamin B0riboflavin vi Pellagra: Vitamin C — ascorbic acid. Infectious disease are caued by various agents such as virus, bacteria, fungi and protozoa.
D Diseases caused by protozoans: Filaria, Tapeworm and Hookworm transmission. Degenerative disease occur due to malfunctioning of some organ or organ system in the body. They are Hear Attack, Diabetes mellitus, Arthritis.
Short Essay on Human Diseases! A disease is a condition that impairs the proper functioning of the body or of one of its part. Every living thing, both plants and animals, can succumb to disease.
Essay on Disease # 5. Allergic Rhinitis (Hay Fever): Characteristic symptoms of hay fever, induced following exposure of the nasal mucosa to the allergen through inhalation, include profuse watery nasal discharge with sneezing, frequently accompanied by redness, irritated and watery eyes and headache.
A disease is a condition that impairs the proper function of the body or of one of its parts. Every living thing, both plants and animals, can succumb to disease. Hundreds of different diseases exist. Each has its own particular set of symptoms and signs, clues that enable a physician to diagnose. - Disease and Pathology Lyme disease, or lyme borreliosis, is an emerging infectious disease transmitted by ticks. Lyme disease is considered an emerging infectious disease because it’s incidence has .
Coronary heart disease is a serious condition caused by the build-up of fatty deposits within the walls of the vital arteries that supply blood to the heart. Coronary heart disease is the major cause of death in . Free Essay: Illness and death from infectious diseases are particularly tragic because they are preventable and treatable. Not surprisingly, the poorest and.