It is an article of faith among intelligent people that the best evidence ought to be used in making medical decisions, with individuals having the final say about their preference.
But other articles of faith get in the way. Polio is spreading through Africa because some Muslims believe vaccination is a Western, or satanic, plot against them. They threaten the rest of the world by dint of their primitive beliefs. In the Western world, a new vaccine has been found to prevent 70 percent of cervical cancer, but to be most effective it has to be given to 11-year-old girls.
In which of these cases should the power of government be brought to bear on holdouts? Some parents argue that while the anti-cancer vaccine may be a good thing for their own daughters, government should leave people’s bodies alone. That has a strong “pro-choice” ring to it, doesn’t it? But if it’s polio we’re talking about, that’s another thing; make those uneducated Africans get vaccinated, even if they will kill you for trying.
In either case, it should be understood that when it comes to effective vaccinations for communicable disease, if you don’t get one you get the other.