Communicable Diseases The stuff you don’t want to share

Communicable Diseases A disease that is spread from one living thing to another through the environment.

Causes Pathogen- an organism that causes disease. Viruses Bacteria Fungi Protozoans (single cell, more complex than bacteria) Rickettsias (similar to bacteria)

Transmission Direct contact- contact with infected person, animal or something in the environment. Indirect contact- contaminated objects, vectors (such as a tick), or through water and food that has been contaminated.

Prevention Wash your hands! Safe food preparation and handling food properly. Take care of your body, especially your immune system. Sensible eating Plenty of rest Exercise Avoid substance abuse Avoid sexual contact Update your immunizations

Prevention Immunity- being protected against a particular disease Active immunity (exposed to antigens) Passive immunity (antibodies from another person or animal) Vaccine- preparation of a dead or weakened pathogen that is introduced into the body to stimulate an immune response