epidemic
[adjective]
relating to or affecting a large number of people within a community, population, or region
heart attack
[noun]
a medical emergency that happens when blood flow to the heart is suddenly blocked, which is fatal in some cases
infected
[adjective]
(of a person, organism, etc.) affected by disease-causing organisms, such as bacteria, a virus, etc.
symptom
[noun]
a change in the normal condition of the body or a person, which is the sign of a disease
infectious
[adjective]
(of a disease or condition) capable of transmitting from one person, organism, or object to another through direct or indirect contact
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