ST. PAUL, Minn. (AP) - Minnesota's new health insurance exchange is struggling with a backlog caused by changes to coverage through the online marketplace.

State, county and health exchange officials tell reporter the MNsure system has made recording of "life events," including births, marriages and address changes, a slow and difficult process. In Dakota County, it took months for nearly 80 new moms to get their infants added to their insurance.

MNsure plans to hire 15 additional employees to help address a backlog of thousands of changes.

Officials said only a few of those backlog cases are thought to involve babies, and they say exchange and state officials have been getting life events into the system in emergency situations. But they say the system isn't where they want it.