| A | B |
|---|
| Infectious Disease | An illness that can pass from one organism to another. |
| Toxin | A poison that can harm an organism. |
| Antibiotic | A chemical that can kill bacteria. |
| Vaccine | A substance that stimulates the boody to produce chemicals that destroy viruses and bacteria. |
| Ways infectious diseases spread. | Through contact with an infected person, an infected animal, a contaminated object, or an environmental source. |
| Pathogen | Disease-causing agent. |
| Ways pathogens enter the body. | Through breaks in the skin, may be inhaled or swallowed,or through moist linings of the eyes, nose, ears,or mouth. |
| Vector | An animal that carries pathogens from person to person. |
| Ticks | Vector of lyme disease. |
| Mosquitoes | Vector of encephalitis. |
| Bacterial diseases | Lyme disease, Strep throat, Tuberculosis |
| Viral diseases | AIDS, Chicken pox, Flu, Polio |
| Penicillin | An antibiotic that comes from a mold. |
