One unfortunate result of the scientifically unsupported contention that vaccinations play a major role in the development of autism spectrum disorder is that in the first half of 2008, rates of cases in the united states doubled as compared to the rates observed between 2000 and 2007.

One unfortunate result of the scientifically unsupported contention that vaccinations play a major role in the development of autism spectrum disorder is that in the first half of 2008, rates of measles cases in the United States doubled as compared to the rates observed between 2000 and 2007.

Explanation:

countries such as spain, france and portugal colonized the region. although most of latin america was colonized by spain, the countries of portugal and france also had major influences on the region. due to war and disease, native populations were decimated.