World leaders are moving to get supplies, but they are still grappling with the vast scope of the problem. The White House announced over the weekend that it had organized 22 flights to airlift personal protection equipment. They are aimed at resupplying hospitals that are within 72 hours of running out of protection equipment, said Gregory Forrester, chief executive of National Voluntary Organizations Active in Disaster, a group that works with U.S. federal and state officials.