A disease that is spread from one living thing to another or through the environment
A condition that occurs when pathogens in the body multiply and damage body cells
a piece of genetic material covered in a protein coat
single-celled microorganism that live almost everywhere on earth
substances that kill cells or interfere with their functions
an organism that carries and transmits pathogens to humans or other animals
passageway that makes breathing possible
the lining of various body cavities including the nose, ears, and throat
Common Cold, Flu, Pneumonia, Strep Throat, Tuberculosis
an infection of the lungs in which the airs sacs fill with pus and other liquids
Yellowing of the skin and eyes
scarring of the liver
a network of cells, tissues, organs, and chemicals that fights off pathogens
a reaction to tissue damage caused by injury or infection
white blood cells that attack invading pathogens
substances that can trigger an immune response
the state of being protected against a particular disease
specialized white blood cell that coordinates and performs many functions of specific immunity
a protein that acts against a specific antigen
a preparation of dead or weakened pathogens that are introduced into the body to stimulate the immune response
communicable diseases whose occurrence in humans has increased within the past two decades or threatens to increase int he near future
a disease outbreak that affects many people in the same place and at the same time
a global outbreak of an infectious disease
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