Newborn screening program; include cytomegalovirus (CMV) in conditions tested for.

HB 643 would require Mississippi's newborn screening program to test for cytomegalovirus (CMV), a common virus that can cause hearing loss or developmental delays in infants. It directly affects all newborns in Mississippi by adding CMV to the list of conditions screened for alongside existing tests like PKU and hypothyroidism. The bill amends state law to include CMV within three years of its addition to the national Recommended Uniform Screening Panel, with the State Department of Health required to report delays to lawmakers. The bill died in committee on February 4, 2025, and did not advance further.