Caring for vulnerable medical populations: Lessons learned from Hurricane Harvey (and every other hurricane before it).

Mass care on an epic scale - we thought we had seen it all during Hurricanes Katrina, Rita, Ike and then Sandy. However, catastrophic scales reached a new level during Hurricane Harvey. How did the response and recovery to Harvey differ from previous hurricane events and what lessons were (and were not) learned? This paper examines the impact on the delivery of medical care to the vulnerable populations in Harvey's path.