Non-infectious disease

what are non infectious diseases

Non-infectious disease are those diseases that are not caused by a pathogen and are not contagious.Diseases caused by these organisms are infectious diseases.There is a huge range of non-infectious diseases and theircauses are many and varied

A non-infectious disease is a disease that may be caused by the environment known as environmental disease e.g. skin cancer from radiation from the Sun), or lack of food (e.g. scurvy from lack of Vitamin C), genetic disorders, or any source other than an infection. They can also be caused by drugs and carcinogens (cancer-causing agents).
Non-infectious diseases cannot be spread from person to person as in infectious disease, but can be passed down genetically in some cases.
Historically, infectious diseases were the main cause of death in the world and, indeed, in some developing regions this may still be the case. With the development of antibiotics and vaccination programs, infectious disease is no longer the leading cause of death in western world.
Non-infectious disease is now responsible for the leading causes of death in both developed and some developing countries

causes of non infectious disease

Causes of non-infectious disease Non-infectious disease includes inherited diseases caused by changes in genetic information, nutritional deficiencies caused by an inadequate diet, and environmental diseases that are the result of factors in the environment. Other disease such as those caused by some types of physiological malfunction, some mental illnesses and ageing will not fit into these categories. Inherited diseases These are disease that are genetically transmitted and are caused by errors in genetic information.
These errors may include:

• A change in the chromosome numbers
• A defect in a single gene caused by mutation.

Diseases caused by gene abnormalities include cystic fibrosis Cystic fibrosis is an example of an inherited disease that is caused by a mutation to the cystic fibrosis transmembrane conductance regulator (CFTR) gene that is found on chromosome 7. This faulty gene changes the protein that regulates the normal movement of sodium chloride in and out of cells. This causes the mucus-secreting organs to produce abnormally thick mucus. The CFTR gene is recessive, meaning that a person must have two copies of the faulty gene for them to develop the disease

Examples of non-infectious diseases include:

• Cardiovascular disease
• Chronic obstructive pulmonary disease
• Hypertension
• Diabetes mellitus type 2
• Down syndrome
• Attention deficit disorder
• Anorexia nervosa

Further reading

• Lower GM, Kanarek MS (1982). "The mutation theory of chronic, noninfectious disease: relevance to epidemiologic theory". Am. J. Epidemiol. 115 (6). PMID 7046429. {{cite journal}}: Unknown parameter |month= ignored (help); Unknown parameter |pagehis= ignored (help)

References

some websites you can get non-infectious diseases from are:

• http://hsc.csu.edu.au/biology/core/better_health/9_4_6/946net.html#net3