The cause of a disease is referred to as the

A disease may be caused by external factors such as pathogens or by internal dysfunctions. For example, internal dysfunctions of the immune system can produce a variety of different diseases, including various forms of immunodeficiency, hypersensitivity, allergies and autoimmune disorders.

What is the cause of a disease?

A disease may be caused by external factors such as pathogens or by internal dysfunctions. For example, internal dysfunctions of the immune system can produce a variety of different diseases, including various forms of immunodeficiency, hypersensitivity, allergies and autoimmune disorders.

What is the medical definition of disease?

A disease is a particular abnormal condition that negatively affects the structure or function of part or all of an organism, and that is not due to any external injury. Diseases are often construed as medical conditions that are associated with specific symptoms and signs.

Is a virus considered a disease?

An infection or colonization that does not and will not produce clinically evident impairment of normal functioning, such as the presence of the normal bacteria and yeasts in the gut, or of a passenger virus, is not considered a disease.

Is disease caused by pathogen?

When a disease is caused by a pathogen (e.g., when the disease malaria is caused by infection by Plasmodium parasites.), the term disease may be misleadingly used even in the scientific literature in place of its causal agent, the pathogen.

What causes the disease that human can have?

5 Causes of disease

  • External and environmental. You were probably told when you were young not to play outside in the rain or you would get sick.
  • Poisonous substances and impurities. These are: poisonous substances and impurities taken in food and drink, inhaled in the air, or absorbed in the skin: toxic fumes, spoiled food, chemicals
  • Living habits and lifestyle.
  • What causes disease in the human body?

    10 Primary Causes of Disease and Dysfunction Injury. Some foods – or more accurately, some heavily adulterated foods and food-like chemicals – are capable of causing… Toxicity. Exogenous toxins are chemicals that are made outside of our bodies that can harm our cells if they are… Deficiency. To be optimally healthy, our cells need enough energy (calories) to carry… More

    What causes illness and disease?

    Infectious diseases are caused by pathogens; any organism that causes disease. Pathogenic microorganisms include bacteria, fungi and viruses. Pathogens cause disease by producing toxins and damaging cells. An example of a disease causing pathogen is the cholera bacteria, Vibrio Cholerae.