cough – n. to force air through your throat with a short, loud noise often because you are sick

detect – v. to discover or notice something

artificial intelligence – n. the power of a machine to copy intelligent human behavior

symptom – n. a sign or marker of something, such as disease

positive – adj. in a medical test, positive means the person being tested has a disease or condition

striking – adj. easily noticed

app – n. a mobile phone program that performs a special function

diminish – v. to become less

signature – n. a sign that confirms something's identity