Medical personnel help patients inside the Spedali Civili hospital in Brescia, Italy, on Friday. (Flavio Lo Scalzo/Reuters)

Thomas D. Kirsch is a board-certified emergency physician and expert in disaster management.

I sometimes wake up at night, suddenly, sharply aware and deeply sad. Haiti comes back to me again. It’s been 10 years. After the earthquake, I worked there in a cramped, hot, ill-equipped tent on the grounds of a half-destroyed Haitian hospital, trying to care for the sick and injured as they poured in, overwhelming our capacity to help them all.