In the New York Post, Mayor Bill de Blasio is quoted as saying:
"We want to state at the outset that New Yorkers have no reason to be alarmed. New Yorkers who have not been exposed are not at all at risk."
However, since Dr. Craig Spencer roamed New York City, including using the subway, before there was a severe onset of symptoms, how do any New Yorkers know for sure they were not exposed? A drop of moisture from his body could have landed on their body part.
Instead of that kind of statement, a leader such as de Blasio could have delivered a comprehensive and candid summary of the risk of contagion. Given that this is a visual era, all that could have been set forth through graphics. Those could be infographics or simple arrow diagrams.
Ruday Giuliani didn't use visuals after 9/11. But everything else then Mayor Giuliani did in his words and behavior calmed and comforted a city in panic.