Hospital Corpsman 1st Class Brent Snyder, left, and Lt.j.g. Roxanne Burrus inspect a water filled ditch that is infested with flies known to spread disease at an internally displaced persons (IDP) camp in Banda Aceh, Indonesia.

Banda Aceh, Sumatra, Indonesia (Mar. 09, 2005) Hospital Corpsman 1st Class Brent Snyder, left, and Lt.j.g. Roxanne Burrus inspect a water filled ditch that is infested with flies known to spread disease at an internally displaced persons (IDP) camp in Banda Aceh, Indonesia. Both are assigned Navy Environmental Preventive Medicine Unit Six (NEPMU-6), currently operating in Banda Aceh on the island of Sumatra, Indonesia, and is conducting daily operations to assess health concerns including water, soil studies, disease and vector control in displaced personnel camps. U.S. Navy photo by Photographer's Mate 2nd Class Timothy Smith File# 050309-N-8796S-015