Students from St. Mary's School who have been visiting China are quarantined again after one of them tested positive for the H1N1 virus.

Frank Phillips, principal of the school, confirmed that the students and their chaperones were quarantined Saturday for the second time during their three-week visit to China.

Kathleen Hildreth, whose daughter Molly is a member of the group, said the student who tested positive has been hospitalized, along with one other student who had been sitting close by recently. The others were housed in the Luming Hotel in the city of Deng Feng.

“We don't know how long they'll be quarantined,” Kathleen Hildreth said.

She said the students were told the quarantine could last as long as seven days, which could interfere with their trip home from China. They are scheduled to depart Friday.

— Bill Kettler