Health officials are looking into an outbreak of gastrointestinal virus at Fairhope West Elementary in Baldwin County, which has caused hundreds of students to miss school, according to media reports.

The school will close Thursday and Friday and conduct a deep cleaning, Superintendent Eddie Tyler told families on Wednesday. The school’s statement said the virus appeared to be a stomach bug.

WKRG reports that at least 773 students were absent on Wednesday, though not necessarily all sick. Just 201 students were on campus,

The Alabama Department of Health said nausea and vomiting have been reported. Staff will investigate the outbreak and work with the Baldwin County school system.