Joyce Jansen (center) of the Mercer County-Celina City Health Department helps facilitate paperwork during a flu clinic. Friday's clinic, like all others held so far, was aimed at vaccinating specific priority groups. From 3-7 p.m. Monday, a clinic will be held at the health department for children ages 6 months to 18 years old with chronic health conditions. Another clinic is planned for 1-4 p.m. Tuesday at the health department for parents and siblings of children less than 6 months old. The clinics are by appointment only; the vaccine is free of charge. To pre-register, go online at https://h1n1vaccine.odh.ohio.gov. The link also can be found at www.mccchd.org.