South Dakota urges vigilance as measles cases surge nationwide

South Dakota urges vigilance as measles cases surge nationwide

SIOUX FALLS — Measles, once declared eliminated in the United States, is making an unexpected comeback — infecting more than 1,000 people nationwide this year alone. That’s triple the number reported just a year ago. The highly contagious virus is spreading rapidly, especially among unvaccinated children, prompting health officials across the country to issue urgent warnings. “Measles is one of the most contagious diseases known to humans,” expl…