from A Journal of the Plague Year, from History of the Peloponnesian War, and from The Plague

Medical advances have greatly expanded our knowledge about infectious diseases and how they can be controlled and treated. Go to the Web site of the Centers for Disease Control and Prevention at www.cdc.gov. Explore a topic of interest related to maintaining a healthy society, such as healthy living, emergency preparedness, or travelers’ health. Write one or two paragraphs describing what you learn. Be sure to put direct quotations in quotation marks and to properly credit your source.