CT Senate Passes Lamont Vaccine Bill HB 5044

Connecticut’s Senate gave final passage Thursday to a vaccine bill backed by Gov. Ned Lamont, moving with unusual speed to cement the state’s public health authority before Washington can erode it further.

The 22-12 Senate vote came just two days after the House approved the measure 89-60, clearing House Bill 5044 for Lamont’s signature with more than a week left in the legislative session. Connecticut Democrats didn’t wait for a deadline. They moved fast on purpose.

Senate Majority Leader Bob Duff, a Democrat from Norwalk, said the chamber acted quickly because of what’s happening at the federal level. “Attacks on vaccine science, cuts to public health infrastructure and measles outbreaks in states that have loosened their immunization standards demonstrate the need for urgency in Connecticut,” Duff said. “Connecticut has an obligation to act quickly and decisively. That is why we moved on this bill today.”

What HB 5044 actually does

The bill expands the authority of the state’s Public Health Commissioner to establish vaccine recommendations for both adults and children. It also guarantees insurance coverage of recommended shots and allows the state to purchase vaccine doses from suppliers other than the U.S. Centers for Disease Control and Prevention.

That last provision matters now more than it might have two years ago. Under U.S. Department of Health and Human Services Secretary Robert F. Kennedy Jr., the federal government last year removed all 17 members of the CDC’s vaccine advisory committee, the Advisory Committee on Immunization Practices, replacing them entirely. Kennedy has also reduced the number of immunizations the federal government recommends. Connecticut is, in effect, building its own floor.

Lamont has framed the bill as a response to “mixed messages” from Washington, telling reporters the state needs to “speak clearly on the importance of vaccines” when federal leadership won’t.

Republicans pushed back hard

The vote wasn’t clean. Senate Republicans spent floor debate raising objections to several provisions, focusing particularly on the bill’s “standard of care” language.

Democrats argue that the commissioner’s vaccine recommendations don’t constitute a mandate. Republicans said that distinction doesn’t hold in practice: doctors whose patients skip recommended shots could still face legal exposure, and residents who don’t follow the standard of care could face discrimination from employers or insurers. GOP lawmakers offered amendments to address both concerns. Both failed.

Sen. Saud Anwar, a Democrat from South Windsor who co-chairs the Public Health Committee, said he understood the concerns about insurers specifically but didn’t want to risk sending an amended bill back to the House. He told colleagues the General Assembly should find another path to address those issues in a future session.

The public fight was real

The bill’s passage follows months of intense public opposition. At a March hearing, CT Mirror reported that over 500 people signed up to testify, and in the first several hours of testimony, the vast majority of those who spoke opposed the measure. Critics called it government overreach and an erosion of religious freedom.

That level of public pushback is rare in the General Assembly’s hearing process. It didn’t stop the bill. Democrats held their caucus together and ran the vote before the session clock ran out.

Why it matters for Connecticut families

Connecticut already leads the country on childhood vaccination. The state posted the highest MMR vaccination rates among kindergarteners in the nation for the 2024-25 school year, according to the CDC. The argument from supporters is that the bill protects that standing when federal guidance becomes unreliable.

For families in Greenwich, Westport, or Glastonbury whose pediatricians work within networks that follow state public health standards, the practical effect may be minimal in the near term. The bill changes what the commissioner can recommend and how the state stocks vaccines. It doesn’t override anyone’s existing exemptions.

The larger question is what happens if the CDC advisory committee, now reconstituted under Kennedy, diverges sharply from what Connecticut’s Public Health Commissioner recommends. Under HB 5044, the state has the legal authority and the purchasing flexibility to go its own way. Without it, Connecticut would be tied to whatever Washington decides.

Lamont has not yet signed the bill, but he has backed it throughout the session and his signature is expected. The Connecticut General Assembly’s bill tracking page will show the bill’s status once it moves to his desk.