evidence: Measles outbreak in US due to unvaccinated citizens, not illegal immigrants [...] In summary, claims that measles outbreaks in the U.S. are caused by Southern border immigration are not supported by evidence and ignore the data showing that it is unvaccinated Americans traveling to regions with measles outbreaks who became infected and started the outbreaks after returning home. [...] This claim is absolutely incorrect. While measles outbreaks over the past two decades have been from international importations as claimed by this "article", they are imported through international plane travel from countries in Europe, the Philippines, and Israel. These outbreaks are not a result of illegal immigration.