Secretary of Health Dr. Rachel Levine is alerting residents who visited several locations in the Allentown area between Oct. 7-12 they may have been exposed to measles.

The locations and times when residents may have been exposed include:

• 7350 Office Building, 7350 Tilghman St., Allentown, between 9:30-11:45 a.m. Oct. 7;

• 1251 S. Cedar Crest Blvd. Office Building, main lobby of the building, Allentown, between 2:30-4:35 p.m. Oct. 7;

• Quest Diagnostics, 1608 W. Allen St., Allentown, from 8-10:30 a.m. Oct. 8;

• Lehigh Valley Hospital, 1200 S. Cedar Crest Blvd., Salisbury Township, 9:15-11:45 a.m. Oct. 12 in the proximity of the emergency department.

“A patient in Lehigh Valley Hospital has a confirmed case of measles, which can be highly contagious,” Secretary Levine said Monday in a news release.

“If you believe you might have been exposed and experience symptoms, please contact your health care provider or call our toll-free hotline at 1-877-PA-HEALTH.”

To date, 16 cases of measles have been confirmed in Pennsylvania in 2019.