A Duncanville school closed for two days this week because of a possible flu outbreak.
UME Preparatory Academy is scheduled to reopen Friday after it was closed Wednesday and Thursday.
"We noticed on Monday we had a pretty high number of absences," UME Superintendent Rollin Mayes said. "The trend seemed to be exacerbated somewhat on Tuesday, and they were reporting various symptoms -- fever, vomiting, things like that."
More than 50 students did not attend school Monday. About 70 students -- 20 percent of the school's 350 students -- were absent on Tuesday.
Marty Minnich, a father of three students, said he agreed with the closing.
"I think it was a good decision," he said. "I'm glad they were proactive in getting everybody out of there so they could get this taken care of."
Two of his children were sick last week, he said.
Maintenance workers thoroughly cleaned the school building on Wednesday.
The two unscheduled days off will not extend the school year. UME will use its built-in weather days.