positive – adj. in a medical test, positive means the person being tested has a disease or condition
symptom – n. a sign or marker of something, such as disease
isolate – v. to put or keep (someone or something) in a place or situation that is separate from others
negative – adj. in a medical test, negative means the person being tested does not have a disease or condition
upcoming – adj. to happen soon
tourist – n. one who visits a place for pleasure
dose – n. the amount of a medicine or vaccine that is needed to be effective against disease