Kennedy High School has confirmed that one of the Montgomery County school's students has been diagnosed with tuberculosis.
The student tested positive last month and has not returned to class since learning they were sick.
Students who came in close contact with the infected student will be tested for TB in about two weeks.
A teacher told the Washington Post that some staff members are upset that they weren't told of the possible exposure sooner. Letters to the Kennedy High School community are reportedly going out this week.
School officials have not identified the infected student or said how the child contracted TB.
