Information about how the 1918 flu spread in Europe during the first wave
would best fit in which section?
O A. "Origins of the Outbreak"
O B. "Deadly Mistakes"
C." The Roughest Time
D. "Back to Normal?"
Explanation: Influenza is caused by a virus that is transmitted from person to person through airborne respiratory secretions. An outbreak can occur if a new strain of influenza virus emerges against which the population has no immunity.