quarantine – v. to keep (a person or animal) away from others to prevent a disease from spreading : n. the situation of being kept away from others to prevent a disease from spreading

acute – adj. very serious or dangerous : requiring serious attention or action

respiration – n. medical : the act or process of breathing : respiratory is the adjective

exposure(s) – n. the condition of being affected by someone or something; expose – v. to be affected by someone or something