Use the passage to answer the question.

To accurately determine the correct answer, I would need to see the introductory paragraph you're referencing. Could you please provide the passage?

Epidemiology's Fight

Against Ebola
by Carol Hand
Emile was a two-year-old boy living in Meliandou, a village in the West African nation of Guinea. In December 2013, Emile may have been bitten by a fruit bat, a common animal in West Africa. On December 26, he became ill. He died two days later.
By January 14, his three-year-old sister, his mother, and his grandmother had also died. No one yet realized it, but researchers now believe Emile was patient zero -the first person to contract and begin spreading the Ebola virus during this outbreak. There have been more than two dozen Ebola outbreaks since the virus's discovery in 1976. The 2014 outbreak quickly became by far the most devastating.

The introductory paragraph introduces the topic of **c. the 2014 Ebola outbreak**.