ache
noun
: a dull pain that lasts for a while
fever
noun
: a body temperature that is too high, caused by sickness
germs
noun
: tiny living things that can cause disease or illness
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cold
noun
: a common viral infection that can cause coughing, sneezing, and a runny nose
congestion
noun
: being blocked up with or too full of something, as in an organ or body part having too much fluid
contagious
adjective
: spread through contact with people or other living things
contract
verb
: to catch an illness or disease
cough
noun
: the sudden forcing of air from the lungs to clear the breathing passages
diagnosis
noun
: the identification of an illness or injury
disease
noun
: a condition, other than one caused by injury, that keeps a part of the body from working normally; an illness
drug
noun
: a substance given as medicine
epidemic
noun
: the rapid spread of a disease within a community
gene
noun
: a basic unit of heredity that transfers a trait from one generation to the next
immune system
noun
: a collection of cells, organs, and processes in the body of a human or other animal that protect against disease-causing germs
immunization
noun
: a substance, usually in the form of a shot, that protects people from a disease
infection
noun
: the invasion of the body by bacteria, viruses, fungi, or other organisms, which sometimes causes disease
infectious
adjective
: referring to diseases that can spread from one organism to another
influenza
noun
: the flu; an infection of the respiratory tract, caused by a virus, that can spread quickly
organism
noun
: a living thing
pandemic
noun
: the rapid, worldwide spread of a disease
prevention
noun
: an action that stops something from happening
respiratory system
noun
: the body system that controls breathing by inhaling oxygen and exhaling carbon dioxide
saliva
noun
: a liquid in the mouth that mixes with food to help begin digestion; spit
strain
noun
: a group of viral organisms of the same species
symptom
noun
: a specific sign of illness or injury
transmit
verb
: to cause something to be passed from one person, place, or thing to another
vaccine
noun
: a medicine made of weak or dead microbes that teaches the body to fight stronger microbes of the same type
virus
noun
: a microscopic organism that infects the body; a disease caused by a virus
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antibody
noun
: a chemical produced by the body that attacks invading germs
antiviral
adjective
: stopping the growth of a virus
avian
adjective
: of or related to birds
communicable
adjective
: able to be spread from one person to another (as in a disease)
microbe
noun
: a microscopic organism, especially one that transmits disease
microorganism
noun
: a microscopic organism, such as a virus or single bacterial cell
mucous membrane
noun
: a type of body tissue that produces mucus
mutate
verb
: to permanently change into a different form
mutation
noun
: a genetic variation a living thing is born with that may alter how it grows and what it can do
pathogen
noun
: a unicellular organism that causes disease
swine
noun
: of or related to pigs; a pig
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