MCIR, as of June 2006, represents the Michigan Care Improvement Registry, an electronic registry accessible by private and public providers. Adults as well as children may receive immunizations from multiple providers, who are unlikely to have a means of otherwise sharing immunization status information. Over- and under immunization can occur, which is costly. MCIR electronically monitors a child’s immunization history as to current status as long as providers efficiently proceed with data entry. It also carries blood lead testing status. Pertinent to adults will be information regarding Tetanus, Hepatitis, Pneumonia, and Influenza immunizations as well as historical records that providers may be able to enter for each of their patients over 20.