Besides all of the good things that everyone else has said, I want to add that we have been programmed to believe that people are getting tetanus every day, and unless you keep up with your vaccines you are doomed. Tetanus is one of my triggers, so I have done a lot of research. In the United States, approximately 35 people get tetanus each year. Some of them were current with their vaccines. There are over three hundred million people in the United States. Each day people are getting millions of cuts. It is estimated that only fifty percent of the population is current with their vaccines. SO, the chances of getting tetanus are about the same as winning the lottery and getting struck by lightning on the same day. And, most of the people who got tetanus survived.
Also, what Beth0810 said is right on. I've read the information at the British medical site. They follow a different protocol, and in Great Britain approximately six people a year get tetanus and the population is around sixty million. So, even with the vaccine schedule they follow there is no significant difference in the numbers. Interestingly, the British website doesn't scare you into believing that you will die from every kind of cut. They explain it rationally.
And, one more thing. Before the tetanus vaccine was even created the incidences of tetanus had significantly decreased. This was attributed to better hygiene and people actually cleaning their wounds.
Anyway, that's my two cents. Oh, and I never read about anyone getting tetanus from a dirty potato. Try to calm down.