MISSOULA (KPAX) — A coalition of medical providers and patients filed suit Wednesday to invalidate Montana’s law barring them from requiring employees to be vaccinated, saying it violates federal law and the U.S. and Montana constitutions.

The suit said the law – passed by Republican majorities at the 2021 Legislature – illegally prevents physicians, their offices, and hospitals from providing a safe environment for patients.

The law “limits the ability of hospitals to exercise their professional judgment in determining the conditions of employment of those persons in clinic settings and otherwise, when necessary to address the safety of patients, providers and staff,” the suit said.

The filing of the suit comes during a resurgence of Covid-19 infections in Montana, with many of the state’s major hospitals crammed with infected patients.

“The presence of unvaccinated medical workers undermines the credibility of (physicians) when they urge vaccine-hesitant patients to become vaccinated, even when the vaccines may be in the best interest of the patients and of the public at large,” the lawsuit said.

The lawsuit, filed in U.S. District Court in Missoula, asked the judge to permanently block enforcement of portions of the law – which is believed to be the only state law in the nation that bars all businesses from requiring employees to be vaccinated.

But the suit does not seek to invalidate the law for all businesses but rather asks only to prevent it from applying to physician offices and hospitals.

Plaintiffs in the lawsuit, which was filed in federal court in Missoula, include the Western Montana Clinic, Five Valleys Urology, Providence Health & Services and the Montana Medical Association, which represents physicians in the state.

The plaintiffs also include seven people listed as patients, who have compromised immune systems or other special medical considerations and must frequently access medical care.

They must “avoid commercial and professional establishments that fail to take steps to minimize the spread of the virus and other common viruses and germs,” including hospitals or physician offices that employ unvaccinated workers, the suit said.

The new law, therefore, violates the federal Americans with Disabilities Act, because it prevents hospitals and physician offices from taking steps to accommodate those with disabilities, the suit said.

The suit names Montana Attorney General Austin Knudsen and state Labor Commissioner Laurie Esau as defendants.

The suit said the law also violates Montana’s constitutional guarantee to a safe and healthy environment, federal occupational rules, and equal-protection language because it treats hospitals and physician offices differently than nursing homes – which have an exemption in the law.

It said unvaccinated workers are more likely to spread infections, including Covid-19, and that healthcare facilities have a professional obligation to enforce infectious disease prevention standards.