From the Boston Globe, April 21, 2022:

NANTUCKET — As spring emerged on this island of manicured estates and idyllic beaches, a group of scientists from the Boston area arrived on a recent afternoon with an extraordinary request for local officials: Let us release hordes of genetically altered mice into the wild. Hundreds of thousands of them, potentially.

The engineered rodents would look exactly like the native white-footed mice.

But each of their cells would carry genetic code, specially tailored in an MIT lab, for resistance to the bacteria that causes Lyme disease. White-footed mice are a key reservoir for the harmful bacteria. READ MORE.