I want to mention something which recently appeared that made me change much of the way I think about vaccines. I used to think that in first world countries, we could be much more lenient in vaccine schedules. In first world countries, we enjoy the fruits of highly trained physicians, adequately equipped hospitals, and essentially the latest and greatest in medical care. In addition to that, we have proper sanitation where our water supply is generally free of disease. Our options for good nutrition are plentiful, and we typically enjoy a life free from the stress of civil war and political instability. Because of all of these things, I felt like it was much easier for citizens of first world countries to approach vaccination with skepticism. Even if something went wrong, which was unlikely, we have the infrastructure to quickly address any problems.