Not all infections are considered diseases as some infections don't make a person sick.A Zoonotic disease is an infectious disease that can be transmitted between animals to humans.Interesting Facts about Infectious Disease An injury such as a concussion would be considered a medical condition. Medical condition - The term medical condition is used to describe everything from injuries to infectious diseases to disorders.This includes diseases such as coronary artery disease, high blood pressure, and congenital heart disease. Heart disease - Heart disease is used to describe anything that is wrong with the cardiovascular system.Examples include eating disorders such as bulimia and mental disorders such as depression. Often disorders are associated with the brain and are called mental disorders. Disorder - A disease is sometimes called a disorder when some part of the body isn't functioning normally.Examples include Type 2 diabetes, alcoholism, and heart disease caused by high blood pressure. They can also be a result of people living longer. Lifestyle - Lifestyle diseases are caused by the way people live.Examples include Type I diabetes and multiple sclerosis. Autoimmune - An autoimmune disease occurs when the immune system attacks the body.Many of the same diseases, but not all, that can spread through direct contact can also be spread through indirect contact. They may be on objects such as doorknobs and telephones. Indirect contact - Some pathogens can survive for a while outside the host.Examples include influenza, the common cold, and chickenpox.
This could include shaking hands, sneezing (airborne), and kissing. Direct contact - Diseases are often passed from person to person by direct contact.Diseases from insects include malaria (mosquitoes), Lyme disease (ticks), and the bubonic plague (fleas). Insect bites - Insects such as fleas, mosquitoes, and ticks can carry pathogens that get passed on when they make contact with humans.Examples of diseases that are transmitted this way include E. This can occur in undercooked food or when sewage gets into the water supply. Food and water contamination - Some diseases are passed on by contaminated food or water.Infectious diseases can be transmitted in several ways including: They can cause diseases such as fungal meningitis, ringworm, and thrush. Fungi - Fungi are microorganisms such as yeasts and molds.Some parasitic diseases include malaria, sleeping sickness, and scabies. Parasites - Parasites are organisms that live off their hosts.They can cause diseases such as tuberculosis, cholera, typhoid fever, and tetanus. Bacteria - Bacteria are small microorganisms.Diseases caused by viruses include influenza, the common cold, measles, yellow fever, and hepatitis. Viruses - Viruses are extremely small and consists of DNA with a protective coating of protein.Here are some example diseases caused by each type of pathogen: Click on the word to learn more.ĭifferent kinds of pathogens cause different kinds of diseases. Examples of pathogens are viruses, bacteria, parasites, and fungi. Pathogens are tiny organisms (called microorganisms) that invade the body and make it sick. Maybe after reading this, you will wash your hands a bit more! When your mom says to wash your hands because of germs, she wants you to get all the pathogens off your hands so they won't go into your mouth and body. "Pathogen" is the scientific name for "germ." Infectious diseases are caused by pathogens. Although we will mostly discuss infectious diseases in people on this page, other living organisms such as animals, plants, and microorganisms can all be made ill by an infectious disease.
Infectious Disease What is an infectious disease?Īn infectious disease is any disease caused by a pathogen (germ) such as a virus, bacteria, parasite, or fungus.
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