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. Now, a recent outbreak in one North Dakota county has led local health officials to quarantine nearly 200 unvaccinated students.
North Dakota has reported nine measles cases this year, and a recent outbreak among schoolchildren in Williams County in the northwest part of the state has led local health officials to enforce a law that requires unvaccinated students to quarantine for 21 days after exposure to someone who has the virus. The move was taken by local public health officers in the Upper Missouri District Health Unit, and the state health department is assisting with mitigation efforts.