There are two confirmed cases of the H1N1 virus.
"I'm just a little a nervous about it. Everybody else is fine, taking it cool," Kitchens said.
Action News was told the school was thoroughly disinfected Wednesday night and they've also stepped up other precautions.
School officials are monitoring absentee numbers, but they say as long as sick students stay home, they'll stay open.
It's a different scene at another Catholic school. Doors are shut at Archbishop Carroll in Radnor and sports fields are empty. The school is closed Thursday and Friday, after 38-percent of the students were absent on Wednesday.
Back at Bishop Shanahan, seasonal flu shots are scheduled to be given out Friday. Some students are also hoping to get the H1N1 vaccine soon.
"Just to stay healthy," senior Kathryn Gosik said.
The H1N1 vaccine is recommended for high school students. However, it may take a week or two longer for the vaccine to become widely available in our area.