GASTON COUNTY, N.C. -- Health officials in Gaston County are investigating a possible case of tuberculosis.

They say they're contacting the person's family and others who have been in close contact with them, which includes co-workers at an area Olive Garden.

Authorities say there is a low risk of exposure to the public, because tuberculosis is only spread through direct contact over an extended period of time.

It is not spread through consuming prepared food or drink.