All Bedford High School students and staff must now wear a face mask indoors during school hours, as well as at indoor before- and after-school activities, Principal Bob Jozokos announced Tuesday.

In an email, Jozokos said the mask order is in effect through Oct. 5. He referred to multiple cases of COVID-19 at the high school over the last two weeks, including “recent classroom clusters,” and said the state Department of Health and Human Services has identified the school as having an outbreak of the virus.

As part of the school’s reopening plan, he said, an outbreak requires universal masking for up to 14 days.

“It is our hope that in the next 14 days we will get back to a baseline (no clusters, no outbreaks) and be able to keep students and staff in school as much as possible,” Jozokos wrote in an email.

Masks are not required during outdoor practices, games or classes, nor while eating lunch. Visitors and spectators are to be masked whenever they are indoors, he said.

“Please note that school districts are not permitted to require masks of only their unvaccinated populations,” the principal wrote. “Our 14-day masking applies to everyone.”