The Kenosha County Division of Health is tightening up the list of target groups to receive the H1N1 flu vaccine, once more shipments arrive.

Immediate vaccinations are now being urged only for children 6 months through 4 years old, and those 5-18 with medical conditions that put them at greater risk of suffering influenza-related complications, according to a Wednesday advisory.

Previously, all individuals ages 6 months to 24 years were included on the vaccination target list.

While all health care and emergency services personnel were included in the original target groups, that list has now been revised to include only those who have direct contact with patients or infectious material.

All pregnant women and those who live with or provide care for infants 6 months and younger remain on the list.

Those who are not in at least one target group are urged to hold off on getting the vaccine until the high-risk list has been served.

Cynthia Johnson, the county’s nursing director, said the groups were revised following state guidelines, in response to the massive demand that quickly depleted initial supplies of the vaccine.

The county administered nearly 900 doses of the vaccine at a clinic Tuesday at Tremper High School, the second of two such local events since the H1N1 vaccine became available. Just under 1,500 doses were distributed at the first clinic Saturday at the Kenosha County Center, Johnson said.

Several additional clinics, previously scheduled, were postponed until further notice, due to lack of supply.

Johnson said Wednesday it remained uncertain when more of the coveted vaccine would arrive.

“We’re at the whim of when it’s released,” Johnson said.

The state Department of Health Services reported Wednesday that four more people in Wisconsin have died from H1N1, bringing the death total to five since Sept. 1 and 14 since H1N1 broke out in the spring.

While H1N1 cases have been reported in 65 of the state’s 72 counties, including Kenosha, none of the deaths occurred here.