In simple terms, "epidemic levels" means that a particular problem or situation has reached levels that are widely considered to be a serious and widespread issue.
Sentences with «epidemic levels»
Symptoms of low cortisol appear to be at epidemic levels among thyroid patients. (recoveringwitht3.com)
The virus them leaps from animal to human, where it quickly reaches epidemic levels. (haro-online.com)
The current rate of consultations per 100,000 has not yet hit 200, the official epidemic level. (politics.co.uk)