FAIRFAX COUNTY, Va. – A case of Tuberculosis is being investigated at Northern Virginia Community College.

Virginia health officials said a student who attends classes at the Annandale and Alexandria campuses of the college has a tuberculosis, or TB, infection and has potentially infected others at the college. Health officials said those who are suspected of being exposed to TB have been contacted.

Here’s more in a statement from the Fairfax County Health Department:

When an individual is diagnosed with active TB disease, as part of our routine investigation we investigate who may have come into close contact with that individual. When others are considered potentially exposed, we contact them and recommend screening and testing for TB.

We have already contacted those individuals on the Annandale campus who are considered potentially exposed in this case. If students, faculty, and others who attend class or work at the Annandale campus did not hear from the Health Department, then there is no action that they need to take.

Officials said the public is not considered to be at risk. The Fairfax County Health Department conducts about 90 investigations like this one each year.

No campuses of Northern Virginia Community College in Prince William or Loudoun counties are included in this investigation.

TB is spread through the air when someone cough, sneezes, speaks, or sings. When infected, TB can cause prolonged coughing, chest pain, fatigue, chills, and loss of appetite.