Students in kindergarten through grade 3 arrive at Petrova Elementary School in Saranac Lake for the first day of class on Sept. 8. (Enterprise photo — Amy Scattergood)

SARANAC LAKE — Students in the Petrova building return to class in person today, after being switched to remote learning for just one day.

Saranac Lake Central School District Superintendent Diane Fox announced the news Monday evening in a robocall to parents.

On Sunday, Fox had announced that kindergarten through sixth-grade students in the Petrova building would go remote because a YMCA child-care worker who works there had tested positive for COVID-19. But by Monday night the shutdown had been lifted. Fox did not say why.

These students will return to what has been their regular schedule all this school year: four days of in-person classes a week, with Wednesdays remote so schools can be deep-cleaned.

This academic year has been a back-and-forth switch between remote and in-person learning for students here and all over, due to the global pandemic. As the threat of transmission rises, classes go online temporarily, then revert.