Oakland County Health Division is extending clinic hours to vaccinate children at Pontiac and Southfield locations. Extended hours at both locations are 8:30 a.m.-7 p.m. Wednesdays, Aug. 5 and Aug. 19, and 9 a.m.-noon, Saturdays, Aug. 15 and Aug. 29. North Oakland Health Center is at 1200 N. Telegraph Road, Building 34 East, Pontiac.