Burma said Monday it would allow in some Southeast Asian aid workers.
Cut phone lines and travel bans have blocked survivors’ efforts to locate loved ones.
The Taiwanese Tzu Chi Foundation says it has sent 15 workers into Burma and won permission to set up a distribution center in Rangoon.
Officials move refugees out of monasteries to stem monks' influence.
Minority groups, uch as the Karen, inhabit much of the cyclone-hit Irrawaddy Delta.
The military regime views foreign aid workers as potential spies or activists' allies.
The junta sought international assistance quickly but has been slow to give visas to foreign aid workers.
The government's surprise announcement to hold a constitutional referendum is being met with deep skepticism.