Objectives: Explainthe difference between infectious diseases and noninfectious disease. Identify five ways that you might come into contact with a pathogen. Discuss four methods that have helped reduce the spread of disease. Legionnaires’ Disease
Causes of Disease Noninfectious diseases Some diseases, such as most cancers and heart disease, which are not spread from one person to another. Infectious disease Disease that can be passed from one living thing to another is an. Caused by agents called pathogens. Colon CancerCells
Pathways to Pathogens Air Some pathogens travel through the air, such as when someone sneezes. Contaminated Objects Drinking glasses, doorknobs, keyboards, combs, and towels that have been used by an infected person can all pass pathogens. Swine flu
Person to Person You can become infected with some illnesses by kissing, shaking hands, or touching the sores of an infected person. Animals Ringworm and Lyme Disease are carried by animals. Food and Water Bacteria growing in foods and beverages can cause illness. Example : Salmonella Salmonella Ring worm
Putting Pathogens in Their Place Pasteurization The method of using heat to kill bacteria. Vaccines and Immunity The ability to resist or recover from an infectious disease is called immunity. A vaccine is a substance that helps your body develop immunity to a disease. Antibiotics Substance that can kill bacteria or slow the growth of bacteria.