(Minneapolis, MN)  —  Minnesota Department of Health officials are investigating reports of pediatric hepatitis from several hospitals.  Tests at the M Health Fairview Masonic Children’s Hospital yesterday showed that a South Dakota toddler awaiting a liver transplant had adenovirus in her blood.  A strain of the virus has been linked with hundreds of unexplained hepatitis cases in children worldwide.  A University of Minnesota pediatric gastroenterologist and transplant hepatologist says many of the are more severe and mean many of the children affected need liver transplants.  The U says a six-month-old who became Minnesota’s youngest liver transplant recipients in the fall had no signs of adenovirus.