In a letter to families, Williamsville Central School District Superintendent Scott Martzloff said 90 staff members have taken a leave of absence due to Covid-19 and 111 staff members resigned.
Additionally, 2,361 students opted into online-only learning, including 1,375 middle and high school students, creating more than 80 virtual teacher vacancies, the letter reads.
Due to the reduction in staffing, school will be delayed until further notice for all students grades 5 through 12 in the online-only learning model, Martzloff said.
Students in the hybrid instructional model or K-4 online-learning only will begin classes on September 8 as originally scheduled, according to the letter.
Students are not allowed to switch instructional models until after October 1, when they will be allowed to switch once, Martzloff said.
“We sincerely apologize to the families that are impacted by this last-minute decision and we will work with the District to ensure students in grades 5-12 who are in the remote online learning model can start their school year as soon as possible,” the letter said.
CNN has reached out to the New York State Department of Education for comment.