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Infectious Diseases
Term | Definition |
---|---|
contact with an infected person | can be direct (such as hugging) or indirect (such as inhaling droplets sneezed into the air) |
contact with a contaminated object | drinking from a sick person's cup |
contact with an infected animal | when an animal bite or scratch transmits a disease (such as a raccoon transmitting rabies) |
contact with an environmental source | when certain bacteria or viruses that live naturally in food, soil, and water spread illnesses |
toxin | a poison produced by some bacteria |
infectious disease | an illness that can pass from one organism to another |
vaccine | a substance introduced into the body to stimulate the production of chemicals that destroy specific viruses or bacteria |
antibiotics | chemicals that can kill bacteria without harming a person's cells |
antibiotic resistance | when some bacteria are able to survive in the presence of antibiotics |