pandemic – n. an event in which a disease spreads very quickly and affects numbers of people over a wide area
monitor – v. to observe or study the progress or quality of something
impress – v. to cause (someone) to feel respect or interest
stigma – n. a mark of dishonor linked to an event, person or quality; a series of unfounded ideas or beliefs that a society or group of people has about something
sanitation – n. conditions related to public health
migration – n. the movement of people to a new area in order to find work or better living conditions