It's a sort of chicken-and-egg question as to which must come first but generally, if infrastructure and education are there, public health will follow. On the

It's a sort of chicken-and-egg question as to which must come first but generally, if infrastructure and education are there, public health will follow. On the other hand if most of the populace can't read or write, if there is a constant lack of resources and perpetual warfare, the people who you are healing will most likely end up in an early grave anyway. Employment will help with all of these things, since happily employed (and educated) people don't typically start rebellions, are capable of building lasting infrastructure and making use of outside aid.