Western states want Asian nations to pressure Burma to accept help.
Minority groups, uch as the Karen, inhabit much of the cyclone-hit Irrawaddy Delta.
Without aid coming along Burma's Asian Highway, Burmese head east to find help.
Simple remedies abound, experts say. But will the government act?
The military regime views foreign aid workers as potential spies or activists' allies.
In Mae Sot, home to many Burmese exiles and refugees, two helicopters stopped unannounced during a survey of the area
UN members rejected a proposal Thursday to forgo junta permission and force aid in.
Ping pong and pandas buoyed the five-day visit, but tougher issues, such as disputes over energy exploration, went unresolved.