No positive results have been found thus far among the students and adults tested for tuberculosis last week at Kahuku High & Intermediate School, the state Department of Health said yesterday.

However, about 20 to 30 screenings have yet to be completed of the 107 people tested.

More than 100 students and adults at the school had been exposed to the disease by a teacher who was unaware of being infected until visiting a doctor for another problem.

The test on all of the exposed people should be done by Friday and a final report is expected in March, the Health Department said.