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An injected medication that might stimulate the immune response to protect a person from an infection.
A device that delivers air into the lungs through a tube that is placed into the mouth or nose and down into the windpipe.
The period of time after the virus has replicated in the host and is being emitted.
A measure of how much damage a germ does. Virulence can also refer to chemicals and toxins. COVID-19 is more virulent than the flu but less virulent than SARS and MERS.
A type of germ or microbe. Viruses are not considered alive because they don’t have the tools they need to replicate on their own. The flu, COVID-19, Zika and Ebola are all caused by viruses. Viruses cannot be treated with antibiotics.
Maximal breathing capacity; the amount of air that can be expired after a maximum inspiration