Tanzania

[Slantwire]

I think this is an appropriate topic. If not, let me know.

I found out today that a doctor friend of mine (I believe the term is "resident") will be spending a month in Arusha, Tanzania (some sort of Doctors Without Borders thing, I think).

I know little. Can anyone here add knowledge? Religious or ethnic boundaries to respect, areas / situations to avoid, general lay-of-the-land?

Thanks in advance.