The Immune System Organisms that cause disease are

The Immune System

Organisms that cause disease are called what? PATHOGENS INFECTIOUS DISEASEis a disease that An __________ can pass from one organism to another. 2

What are the five main groups of human pathogens? BACTERIA, VIRUSES, FUNGI, MOLD & PROTISTS 3

How Diseases Are Spread Some of the more common sources include what? PERSON-TO-PERSON TRANSFER, CONTAMINATED OBJECTS, ANIMAL BITES & PATHOGENS FROM THE ENVIRNOMENT 4

What is the body’s ability to destroy pathogens before they can cause disease? IMMUNITY There are two kinds: active & passive.

What are some ways the body acts in helping fight off infection? SKIN ACTS AS A BARRIER, FEVER, INFLAMMATORY RESPONSE, (SWELLING) SWEATING, WHITE BLOOD CELLS & THE NATURAL KILL CELLS

Immunity that occurs when a person’s own immune system produces antibodies in response to the presence of pathogen is called what? ACTIVE IMMUNITY This is done naturally within the body & usually involves white blood cells.

Immunity in which the antibodies that fight a pathogen come from another organism or source such as an antibiotic or vaccination rather than from the person’s own body is called what? PASSIVE IMMUNITY

Sometimes called an immunization; it is the process by which harmless antigens are deliberately introduced into a person’s body to produce active immunity is what? VACCINATION

The substance used in a vaccination is VACCINE called _____; it usually consists of pathogens that have been weakened or killed, but can still trigger the immune system to go into action. POLIO, MEASLES, MUMPS, RUBELLA (GERMAN MEASLES) & PERTUSSIS (WHOOPING COUGH) ARE SOME OF THE THINGS WE GET VACCINATED FOR AT AN EARLY AGE.

Examples of Diseases Infectious Disease Non-Infectious Disease Pathogen colds virus cancer AIDS virus diabetes strep throat bacteria heart-disease chicken pox virus allergy 11