Discuss one historical epidemiological event or accomplishment that has left an impact on healthcare as we know it. Clearly identify, describe, and define key points or people in the event or accomplishment. Please site from a SCHOLARLY reference. Both a full reference and in text citations in the post.

The book used for this class and can be used for reference is:

Goroll, A. H., & Mulley, A. G. (2014). Primary care medicine: Office evaluation and management of the adult patient (7th ed.). China: Wolters Kluwer.Goroll, A. H., & Mulley, A. G. (2014). Primary care medicine: Office evaluation and management of the adult patient (7th ed.). China: Wolters Kluwer.