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Science Explosion 16

BJU 6th Science - Chapter 15

communicable contagious
non communicable non contagious
pathogen anything that causes a disease
vector insect or animal that carries a pathogen
epidemic when a disease spreads to a large number of people in a short time
airborne pathogen spreads through the air
contact spread by touch
food-borne contamination by food
water-borne contamination by water
epidemiologist scientist who studies cause and spread of disease in communities
defensive barrier helps keep pathogens out of body (like skin)
cilia tiny hair-like projections that line air passages
inflammatory response non-specific defense (swelling, pain, redness)
immune response specific defense (lymph, white blood cells)
antibody special proteins that can destroy pathogens
memory cell white blood cells (WBCs) that remember the "enemy"
immunity special protection against disease
vaccine shot that contains dead or weakened pathogens
antibiotic chemical that can destroy bacteria
allergen anything that causes the immune system to have an allergic reaction
autoimmune disease when immune system attacks own healthy cells
Created by: MrsDunham