http://www.cnn.com/2014/05/23/health/ohio-measles/
FWIW, France is another country where Measles cases are on the rise due to low vaccination rates and from where unvaccinated US travelers returning home to the US have brought it back with them.
In 2011, more than 30 countries in the WHO European Region reported an increase in measles, and France was experiencing a large outbreak. Most of the cases that were brought to the U.S. in 2011 came from France.
http://www.cdc.gov/measles/cases-outbreaks.html
It goes without saying that we should protect our country and seal our borders from illegals coming into the country. But we cant and shouldnt seal our borders against all travel in and out of the country - legal travel - tourists, business travelers, etc.
And while I think getting vaccinated against preventable and sometimes deadly diseases is a very good idea, I am not for government mandated/forced vaccinations. But I also think not getting vaccinated should not be without consequences.
One of those consequences should be that if you come into the US even on a tourist or work VISA and even for unvaccinated US citizens who travel out of the US and travels to a country with a measles or any other communicable and or vaccine preventable disease outbreak, if you have not been, cannot prove your prior vaccination(s), upon return, you should be quarantined and subject to a medical exam until the incubation period has past.
FWIW we still do require medical examinations of legal immigrants coming into the US, including a check on vaccination records, although I question how rigorously it is enforced now days. It is certainly not enforced for the undocumented.
http://en.wikipedia.org/wiki/Medical_exclusion_of_immigrants#Vaccinations
“One of those consequences should be that if you come into the US even on a tourist or work VISA and even for unvaccinated US citizens who travel out of the US and travels to a country with a measles or any other communicable and or vaccine preventable disease outbreak, if you have not been, cannot prove your prior vaccination(s), upon return, you should be quarantined and subject to a medical exam until the incubation period has past.”
Definitely sounds like a good idea.