Most people in the United States have protection against this infirmity because vaccination is available. This generates herd immunity and protects others in the community. However, there have been resurgences of the infection in the United States because many parents and others do not want children to take it [1, 2, 3].
The live-attenuated MMR is safe and effective for most individuals. In some other regions of the world, vaccination may be inadequate or not in use at all because of social and political unrest. In the United States, vaccine hesitancy leads to the same problem [1, 2, 3].
In fact, the World Health Organization believes that vaccine hesitancy is “..one of the top 10 threats to global health” (Paules, Marston, and Fauci, p 2186; 2019). Those who take the live-attenuated MMR have 97 percent protection against those illnesses. Moreover, since 2000, vaccination against this virus has prevented approximately 21 million deaths worldwide. One must remember that prior to aggressive use of this vaccination, there were 2 to 3 million deaths annually across the globe .
Since there are many countries which do not administer MMR adequately, there is a problem with residents of those geographic areas who come to the United States or other parts of the world. They infect people because there are many who do not have protection [1, 2, 3].