stroke – n. a serious medical condition where a blood vessel becomes blocked or breaks suddenly

dementia – n. a brain disease that causes the loss of the ability to communicate and think

burden – n. the number of cases of a disease

pandemic – n. a dangerous disease that spread across a large area

proportions – n. the relationship that exists between something and its size

antibody – n. a cell that fights infection

fake – adj. false, not true

biosphere – n. all living things

smog – n. thick pollution

premature – adj. appearing or taking place before expected


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