There have been 230 cases of whooping cough just in the last six months in Boone, Campbell, Grant and Kenton counties.
More than 45 schools and child care centers have been impacted.
School staff and parents are also at increased risk, because they're exposed to kids who are infected.
The Northern Kentucky Health Department has been working several strategies to prevent it from spreading including providing free vaccine to the community.
The vaccine is available by appointment at any of the health departments centers.
Many local schools have also partnered with the Health Department to offer vaccination clinics for students, staff and families.
The latest free vaccine clinic will be held May 18th in Florence for anyone age 10 and older. It will be held 3:30 p.m. to 6 p.m. at St. Paul Catholic School, 7303 Dixie Highway, Florence, in the Schneider Building, Room 201-203.