At least 135 students and staff at Waipahu High will be tested after coming into contact with someone who was diagnosed with tuberculosis.
The state Health Department said the testing is precautionary, and stressed that most Waipahu High students and staff are not at risk.
The state was notified of the active TB case in March, and conducted an investigation to determine who the sick person may have come in contact with.
The Health Department will test people who came in "regular, close contact" with the patients.
Meanwhile, officials will send all students and staff members a letter about TB exposure. There will also be school-based meetings on the situation.
TB screening is scheduled to start Friday.
“This screening is an extra measure of safety for students, school staff, their families and the community,” said Dr. Virginia Pressler, state Health Department director, in a news release. “Our TB Control staff are experts in this area and are working closely with school officials to ensure everyone’s safety and answer all questions and concerns.”
TB is commonly seen in the lungs and can be spread from person-to-person through the air with close, continuous contact.