tough -adj. very difficult to do or deal with

multiple -adj. more than one

lockdown -n. an emergency measure or condition in which people are temporarily prevented from entering or leaving a restricted area or building (such as a school) during a threat of danger

absolutely -adv. completely or totally

leaflet -n. a printed and often folded sheet of paper that is usually given to people for no cost

symptom -n. a change in the body or mind which indicates that a disease is present

host -n. one that provides facilities for an event or function

quarantine -v. to keep (a person or animal) away from others to prevent a disease from spreading : to put or keep (a person or animal) in quarantine

cough -n. a physical condition or illness that causes someone to cough

backyard -n. an outdoor area behind a house