Genetically engineered mice aim to curb Lyme

Researchers on Nantucket, Massachusetts, are testing genetically engineered mice designed to interrupt the life cycle of ticks that transmit Lyme disease, an approach intended to lower local tick infection rates and reduce human cases as Lyme incidence climbs across parts of the United States. The work was profiled in a recent CBS News segment by chief medical correspondent Dr. Jon LaPook, which describes field trials and the scientific rationale for targeting reservoir hosts (white‑footed mice) to break transmission.