(Comment about last post)
Virtually every childhood vaccine has relevance to some children and some families. But the "one size fits all approach" most doctors present to parents or to traveling adults is not scientifically sound.
As I mentioned, rotavirus diarrhea is a very dangerous disease in many areas of the world but it's not dangerous in the USA. Yes, it can create serious illness in some children but the risk/benefit analysis for this new immunization is not good enough. And the cost is far too high for developing nations where rotavirus is deadly every single day.
We must focus on economic assistance to countries so that we can save hundreds of thousands of children by getting appropriate vaccines--including this one--to the children who need them most and not just to the families who can afford them.