pandemic – n. an occurrence in which a disease spreads very quickly and affects a large number of people over a wide area or throughout the world

emission – n. the act of producing or sending out something such as energy or gas from a source; something sent out or given off

sanitizer – n. a chemical substance designed to kill germs

constant – adj. happening a lot or all of the time

respiratory – adj. relating to breathing

anxious – adj. worried or nervous