| A | B |
|---|
| pathogen | disease-producing microorganism |
| communicable disease | contagious disease |
| direct transmission | human-to-human contact in the form of touch or exchange of bodily fluids |
| bloodborne transmission | spread through blood or other bodily fluids |
| droplet transmission | spread through infected respiratory droplets |
| indirect contact transmission | infected by contact with infected surface |
| airborne transmission | contact with pathogen floating through the air |
| food-borne and waterborne transmission | eating contaminated food or water |
| vector-borne transmssion | transmitted by insect bite |
| epidemiologist | studies outbreaks |
| endemic | an illness that is always in a population |
| epidemic | sudden and widespread outbreak |
