STDs cost us about 160 billion annually.The most significant quality issue with our healthcare system is the quality of the patients.
As a country we are overweight, have bad diets and don't exercise.
Ask Hayabusa how many of the prescriptions he fills are for medicines that deal with those three problems.
In 1995 obesity cost our healthcare system $51 billion or about 5% of all healthcare expenditures. By 2003 that number was up to $93 billion.