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Chapter 7

TermDefinition
Antibiotic A substance that kills bacteria or prevents the growth of bacteria
Antibody A chemical made by the immune system that makes it easier for white blood cells to destroy pathogens
Bacteria Microscopic, single-celled organisms
Contagious Very easy to spread; used to describe a disease
Disease Anything that causes your body to stop working properly
Histamine A chemical that is made by cells in response to injury
Immune able to make the antibodies to a pathogen before it can make you unwell
Immune System The system in your body that fights infections
Infectious Disease A disease that can be spread
Lymphocyte A white blood cell that makes antibodies
Macrophage A white blood cell that consumes pathogens
Neutrophil A type of white blood cell that consumes pathogens
Pathogen An organism that causes disease
Pathogenic Bacteria Bacteria that causes disease
Penicillin an early antibiotic
Quarantine Isolation to prevent the spread of a disease
Sympton Indicator of a particular disease
Vaccine A chemical that causes your body to react as if it had encountered a pathogen
Created by: CaelanH
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