Personnel at Naval Base Point Loma in San Diego County, California, may have been exposed to tuberculosis over the last six months, county health officials reported Monday.

Without providing information on the source of the exposure, the San Diego County Health and Human Services Agency has been working with the Navy to notify those at risk, according to Fox 5 San Diego.

Officials report that the periods of exposure to TB were from Oct. 1 last year to Jan. 31 at the Old Town Complex, Building OT3, and from Feb. 1 to April 7 in the Topside Building.

"Symptoms of active TB include persistent cough, fever, night sweats and unexplained weight loss," said Dr. Wilma Wooten, the county's public health officer. "Most people who are exposed to TB do not develop the disease."

In an effort to minimize the chance of developing active TB, the Navy is providing free TB testing today at the Old Town Complex, and will do so again on May 15 and 16 in the Topside auditorium. 

People who would like more information are asked to call county's TB Control Program at 619- 692-8621.

Last year, there were 258 TB cases reported in San Diego County, up from 234 in 2015. There have been 68 reported cases so far in 2017. Although the number of cases fluctuates year to year, the overall number in San Diego County has been down since 2001.

The Naval Health Research Center happens to be located at Naval Base Point Loma, just up the road from the reported sites of TB exposure.