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Chapter 14 Vocabulary

disease any abnormal condition that causes illness in a living organism
pathogen an organism or particle that causes disease
infectious disease a contagious disease caused by pathogens
noninfectious disease a disease that is not caused by pathogens and is not contagious
acute beginning suddenly and lasting for a short time
chronic lasting for a long time and/or recurring frequently
virus a tiny, nonliving particle that can infect cells and cause disease
genetic disorder an abnormal condition that is usually inherited through genes
allergy an abnormal reaction to a foreign substance
allergen a substance that provokes allergies
lymph nodes a rounded mass of tissue that filters fluids from other body tissues and traps pathogens
immune response the series of reactions that take place when white blood cells fight against infection
immunity the body's ability to protect itself from pathogens before they cause disease
Created by: lrpsalter