Measles outbreak in North Dakota prompts local health officials to quarantine unvaccinated schoolchildren

Measles cases continue to accumulate in the United States in what is already the second-worst year since the disease was declared eliminated a quarter-century ago, and a recent outbreak in one North Dakota county led local health officials to quarantine nearly 200 unvaccinated students.

​ Measles cases continue to accumulate in the United States in what is already the second-worst year since the disease was declared eliminated a quarter-century ago, and a recent outbreak in one North Dakota county led local health officials to quarantine nearly 200 unvaccinated students. Read More Breaking News, Latest News and Videos | CNN