FALLON, Nev. (AP) — Doctors and nurses are staffing mobile clinics throughout the U.S. to ensure people in tiny towns and far-flung rural areas can get vaccinated. In Nevada, Arizona, Kentucky and elsewhere, the Federal Emergency Management Agency has dispatched the mobile units to places that lack pharmacies, clinics and other vaccination sites. In Nevada, volunteer doctors and nurses have teamed up with the National Guard to deliver thousands of shots to communities that state officials say couldn’t offer vaccinations any other way. It’s one of many efforts underway as the nation struggles to reach herd immunity as interest wanes in vaccinations.