That makes absolutely no sense. Then you need to not come into contact with anyone here on vacation or business from another country. Because it's not just "new immigrants" who come here. Also, the vaccination rate for the flu shot appears to be higher in Europe than here. Other countries don't vaccinate as much due to shortages: "Our current vaccination rate is around 38%, despite a flu season last year that took 80,000 lives. In the EU, the aggregate vaccination rate has been 41.8% with several countries vaccination rates approaching 70% or more. But the numbers of vaccinated people in other parts of the globe, specifically southeastern Asia, the eastern Mediterranean  and Africa are much less. What accounts for the disparities? Hint, it is not about money." Influenza Vaccination is Global, But Not the Same We have more to fear from a fellow citizen due to our dismally low vaccination rates than from a "new immigrant" who is probably happy to get a vaccine that's available.