Select the word or phrase that best completes each of the following sentences about the ways to fight viruses.


is a type of drug that serves to eliminate a virus.
Vaccines are preparations containing a weakened version or a small portion of a
such as a virus.
A
is when a person or people harboring an infection are restricted or prevented from making contact with other people in order to break the chain of infection from person to person.
Healthcare professionals with an up-to-date
can break the chain of infection that spreads certain illnesses, such as hepatitis B.