Health officials are still looking for answers related to mysterious cases of severe liver damage in hundreds of young children around the world.The best available evidence points to a common stomach virus not known to cause liver problems in otherwise healthy children.That virus was found in the blood of sick children, but it has not been found in their diseased livers.Eric Kremer is a virus researcher at the Institute of Molecular Genetics of Montpellier in France.He said, "There's a lot of things that don't make sense."The U.S. Centers for Disease Control and Prevention and health officials around the world are trying to find out what is going on.The illnesses are considered rare.CDC officials recently said they are now looking into 180 possible cases across the United States.Most of the children were hospitalized.At least 15 required new livers and six died.More than 20 other countries have reported hundreds more cases in total.
