The commercial milk supply does not appear to be compromised by a live bird flu virus, according to new testing data published by the Food and Drug Administration. The FDA released a comprehensive report on Monday outlining details about the samples collected from nearly 300 samples of milk that were tested earlier this month for the highly pathogenic H5N1 avian influenza.

The Michigan Department of Agriculture and Rural Development says three more dairy herds across the state have been infected with highly pathogenic avian influenza, also known as bird flu.

The Boston Globe worked with scientists at the Broad Institute of MIT and Harvard University to test store-bought milk in New England for H5N1, the strain of bird flu that is spreading through cattle farms.

The discovery of bird flu virus particles in the commercial milk supply has reignited public interest in the century-long debate over pasteurizing milk. Sales of raw milk, or milk that