these countries are very different from china foodwise...
we are very cautious eaters in asia but love our food... WE EAT NO NO NO STREET FOOD OR DRINKS...
we try to shy away from buffets as well except at breakfast.
don't eat it if it is not freshly cooked, fully cooked, peeled, etc... we avoid ice except in 5* hotels, and even then we often do not have it... especially in drinks... froozen drinks, etc.. i don't care what the shape of the ice cube is..
we usually do not eat on short hop asian flights either..
we brush our teeth with bottled water.... we keep our mouths closed when showering...
we use common sense..