# Measles cases explode amid declining vaccination rates > HelixNews · Web page: https://helixnews.one/story/376657 · All pages for agents: https://helixnews.one/llms.txt 1 outlet covering · First listed: NBC News, Nov 10, 2026, 6:30 PM · Read it: NBC News’ Erin McLaughlin traveled to Lancaster County, Pennsylvania, which is the epicenter of a deadly measles outbreak. The investigative report for the NBC News series “The Vaccine Divide” finds 75% of U.S. counties have vaccination rates that are now below the level needed for herd immunity. ## Who's covering it In the order they published: - Nov 10, 2026, 6:30 PM: [Measles cases explode amid declining vaccination rates]() — NBC News (TV network, United States) NBC News’ Erin McLaughlin traveled to Lancaster County, Pennsylvania, which is the epicenter of a deadly measles outbreak. The investigative report for the NBC News series “The Vaccine Divide” finds 75% of U.S. counties have vaccination rates that are now below the level needed for herd immunity.