Spokeswoman Paula Smith said callers were screened according to priority vaccination guidelines established by the Centers for Disease Control and Prevent. Only people with a reservation will be allowed through the clinic doors at their scheduled time.

In Greater Cincinnati, health departments are asking private providers to reserve doses for people who fall into high-risk categories.

Those include children 6 to 23 months, adults over 65, nursing home residents, pregnant women, people 2 to 64 with chronic medical conditions, children 6 months to 18 years on chronic aspirin therapy, health-care workers involved in direct patient care and out-of-home caregivers and household contacts of children less than 6 months old.

Here's the latest on Greater Cincinnati flu-shot clinics:

• The Butler County Health Department has temporarily run out of flu vaccine but is scheduled to receive another shipment at the end of the month. Health officials will publicize when more is available. Also check www.butlercountyohio.org/health.

•  Clermont County has nine clinics scheduled this fall. Shots will be given on a first-come, first-served basis. The first is 9:30 a.m. to 11:30 a.m. Tuesday at Felicity Social Center, 2002 Main St. (513) 536-4026.

•  Warren County has clinics for high-risk patients from 9 a.m. to 11 a.m. and 1 to 3 p.m. Tuesday and 9 a.m. to 11 a.m. Thursday. The health department is at 416 S. East St., Lebanon. (513) 695-1464.

•  The Cincinnati Health Department is no longer taking reservations for flu-shot clinics at senior centers. However, the health department is trying to get more vaccine and will let the public know if it does.

In Northern Kentucky, flu shots will be given at the end of October or early November to people with reservations, said Dr. Gary Crum, director of the Northern Kentucky Independent District Health Department. Patients must show a driver's license or other proof of residence for that county.

Health centers in four counties started to accept reservations for flu shots Friday. Residents who fall into a high-risk category can reserve a flu shot by calling their county health center.