Three teachers in the Carrollton-Farmers Branch district have the Coronavirus.
The three teach in the district's Child Development Academy, according to officials. Parents of those children have already been told as have the teachers' colleagues.
The building is closed and will stay that way for what is described as "an in-depth cleaning-disinfection."
Of the district's nearly 24,000 students, a reported 56% have selected online classes to begin the school year.
Monday is the first day of school for both online and on-campus students learning.