Sickness and Symptoms: English Vocabulary List

a sudden and unexpected start or return of a medical problem

"The patient had a seizure."

"The paramedics rushed to help the elderly man who had suffered a seizure on the sidewalk."

an area with a high number of infected people where strict public health rules are applied to control the spread of infection

"The city entered the red zone."

"During the pandemic, the government designated certain areas as red zones to implement stricter health measures."