Forbes Magazine (Internet / Print) 05/25/06 The discovery that seven organ-transplant recipients died from a rodent-borne infection shows the need for a tracking system for early detection of problems involving donors and transplant patients, investigators say. Some regulation might be needed for colonies where these pets are bred, said Dr. Clarence J. Peters, who wrote an accompanying editorial in the journal. He worked at the CDC for 10 years and now is professor of pathology, microbiology and immunology at the University of Texas Medical Branch at Galveston. Peters said he is philosophically opposed to government regulation, but it might be wise to run periodic tests of animal colonies to determine whether the LCMV infection is present, since it can spread rapidly from animal to animal. While LCMV rarely causes death in healthy individuals, it is "a very unpleasant illness" that, among other problems, can make people abnormally sensitive to light, Peters said. (This article has appeared throughout the United States on TV and in Print.)