A suspected norovirus outbreak has shut down a Colorado school district, NBC News reports.
Mesa County Valley School District 51 has cancelled classes for Thursday and Friday after they say students were rapidly becoming ill from a suspect viral outbreak of norovirus.
The problems started last week when about 30% of students and 20% of staff called in sick at a high school, said Emily Shockley, a spokeswoman for the district. Officials believe it to be contained to one school until it spread later in the week.
The exact illness remains unknown, however it is being treated as a norovirus outbreak based on the symptoms, Mesa County Public Health says. Vomiting and diarrhea have been reported as symptoms in the outbreak, with symptoms reportedly rapidly coming upon those sickened.