Chapter 17 Vocabulary Test Flashcards
(28 cards)
Infectious disease
any disease that is caused by an agent that can pass from one living thing to another
Contagious disease
disease that can be passed directly from one person to another
Epidemic
widespread occurrence of an disease
Cholera
bacterial disease that spreads through contaminated water
Bacteria
very small, single-celled organisms that are found almost everywhere
Antibiotic
drug that kills or slows the growth of bacteria
Virus
extremely small particle that consists of an outer shell and genetic material
Immune system
made up of organs and special cells that fight infection
Cilia
tiny hairs that keep germs out of the lungs
Immune response
reaction of the body to a germ that has gotten in
Macrophages
cells that engulf the cells that have been infected by virus
T cell
help destroy virus infected cells
B cell
produce antibodies
Immunity
when your body remembers how to fight a disease that it’s already had
Streptococcus
bacterium that causes strep throat
Mycobacteria
family of bacteria which cause the bacterial infection tuberculosis
Sinuses
open areas in your skull that are located behind your face and above your mouth
Sinusitis
condition in which the sinuses become infected with bacteria
Influenza
a group of virus which can cause the flu
Vaccine
substance that is used to keep a person from getting a disease
Epstein-Barr virus
virus that causes mononucleosis
Sexually transmitted diseases
contagious infections that are spread from person to person by sexual contact
Sexual abstinence
the deliberate choice to refrain from all sexual activity
AIDS
serious viral disease that destroys the body’s immune system