A lot of the voluntary contributions that the WHO receives are "earmarked" for a specific purpose (by the donor), specification which sometimes include a certain country in which the money is to be spent.
For example, according to a WHO map, the US Department of Defense is sponsoring WHO program(s) with (just one) specific country earmarked, namely South Korea.
I'm guessing (but just guessing) that's some kind of monitoring program in case North Korea releases some biowarfare agents in the South.
Is there anymore public information available on this US DoD program executed through the WHO in South Korea?