There is a good gallery of images of the damage here. (it is on facebook)

What part of Nepal did you live in?
Nepalese Television (NTV) says Langtang Valley is completely destroyed with roughly two thousand people killed. #NepalQuake
Gross but not likely a disease issue. It's a myth that mass casualties spread disease. If there is untreated sewage in that river anyway, the risks wouldn't change much.... Here is a morbid question: Do any relief or military organizations have mobile crematoria? Most Nepali funerals are public, open air cremations. It uses a lot of wood. The ashes and remains are put in the Bagmati River (if in Kathmandu) or other local rivers.
If a family cannot afford enough wood to completely burn up the corpse, then incompletely burned remains get dumped in the river. With the number of dead they have now, a lot of incompletely burned remains could end up in local rivers. That could be a disease issue.
Hate to be a debbie downer, but why is the US only sending 1 Million Dollars? There was more cash in the pockets of the people at the Correspondents dinner last night.
Sounds like an interesting and likely worthwhile project.Thank you for all your kind thoughts for my daughter [...]. She is going on two years in Nepal building a system of sustainable kitchen gardens through KISC's EQUIP program in Kathmandu, Nepal. She is working with about 4 different schools building a sustainable kitchen gardening program into their curriculum Two of the gardens are successfully producing and feeding the children at the schools they have been established at. One of them is in a village that was hard hit by the earthquake, so I am awaiting news. She is called to stay a third year and help train a lady who is going to take her place there in the program. From my understanding she is taking two ladies into her home that had their homes structurally damaged bye the Earthquake. No electricity and damaged infrastructure have hit the country hard. Many people hurt or killed beneath piles of ruble. It has effected and affected every one and everything ...it will take a loving hand from many to make their way back to a rebuilt community.
If I am reading correctly, Langtang Valley alone may have more than 2,000 dead:
Over 2,000 dead after Nepal’s huge earthquake—but the toll could get much, much higher