1. Japan
Autism rate: 181.1 cases per 10,000 people
The country with the highest rates of autism in the world is Japan. Earlier studies that dealt with the connection of MMR vaccines and autism have concluded that even though the vaccine itself was abolished, the number of autism cases grew to 161 per 10,000 people. However, a study done in 2008 in Toyota suggests autism rates as high as 181.1 cases per 10,000 people.
