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Ch. 23 Vocab Review

Across
An infection of the lungs in which the air sacs fill with pus and other liquids.
A preparation of dead or weakened pathogens that are introduced into the body to stimulate an immune response.
A disease outbreak that affects many people in the same place and at the same time.
The passageway that makes breathing possible.
A reaction to tissue damage caused by injury or infection.
Substances that can trigger an immune response.
A network of cells, tissues, organs and chemicals that fight off pathogens.
A single-celled microorganism that live almost everywhere on earth.
A microorganism that infects the digestive system.
A specialized white blood cell that coordinates and performs many functions of specific immunity.
Down
White blood cells that attack invading pathogens.
A disease that is spread from one living organism to another or through the environment.
A yellowing of the skin and eyes.
A protein that acts against a specific antigen.
Scarring of the liver.
The lining of various body cavities, including the nose, ears, and mouth.
Substances that kill cells or interfere with their functions.
An organism that carries and transmits pathogens to humans or other animals.
A condition that occurs when pathogens in the body multiply and damage body cells.
A global outbreak of an infectious disease.
A piece of genetic material surrounded by a protein coat.