| A | B |
| infectious disease | diseases caused by bacteria, viruses, fungi and parasites |
| pathogen | disease-causing organism |
| communicable | disease that can spread from one person to another |
| non-communicable | diseases that cannot be spread from one person to another |
| epidemiology | study of transmission, occurance, control and distribution of a disease |
| incidence | number of new cases w/in a population |
| prevalence | number of existing cases w/in a population |
| endemic | a disease that occurs in low levels of a population |
| epidemic | a disease that occurs in unusually large numbers in a specific area |
| pandemic | a disease that spreads worldwide |
| outbreak | a disease that suddenly occurs |
| notifiable disease | a disease that must be reported to the CDC |
| normal flora | the bodys normal microorganisms that do not harm us |
| reservoir | the sourse of an infectious agent |
| horizontal transmission | direct transmission from an infected individual to a susceptible human |
| verticle transmission | diseases transmitted from an infected mother to newborn |
| parenteral | route in which microorganisms enter the host |
| formites | inanimate objects that are contaminated by direct contact by an infected reservoir |
| prion | microorganism composed of proteins that riddle the brain w/holes |
| virus | a microorganism that cannot be cured with antibiotics |
| bacteria | microscopic, single celled organism characterized by shape |
| protozoa | microorganism larger than bacteria that destroys tissue and cause inflammatory response |
| fungi | microorganisms that produces spores which cause allergic reactions |
| helminths | parasitic worms |
| nosocomial infections | hospital-acquired infections |
| antibiotic resistance | bacterias adaptation to certain antibiotics |
| emerging infectious diseases | outbreaks of previously unknown diseases |
| re-emerging infectious diseases | known diseases that reappear after a decline in incidence |
| measles | rubeola virus |
| mumps | swelling in the glands |
| rubella | german measles |
| whooping cough | pertussis |
| diphtheria | toxin causes a thick coat in nose, throat and airway |
| tetanus | bacteria found in contaminated soil and animal excriment |
| chickenpox | viral infection caused by varicella zoster |
| haeophilus influenzae | causes meningitis and pneumonia |
| poliomyelitis | virus that causes paralysis |
| streptococcus pneumoniae | bacteria that causes meningitis and respiratory disease |