New Orleans will require proof of vaccination or a negative Covid-19 test in all public indoor settings, in today's bite-sized hospital and health industry news from Louisiana, Massachusetts, New Jersey, and New York.

• Louisiana: The city of New Orleans last week announced that it will require proof of vaccination against Covid-19 or a negative test for all indoor venues. Individuals ages five and older will be required to show proof of at least one dose by Jan. 3 and both doses by Feb. 1—one month before the start of Mardi Gras. The city's requirement for indoor venues follows the New Orleans public school system's announcement that all students ages five and older will be required to get vaccinated against the coronavirus no later than Feb. 1. (Frazier, Axios, 12/17)

• Massachusetts/New Jersey: Separately, Sens. Elizabeth Warren (D-Mass.) and Cory Booker (D-N.J.) on Sunday confirmed they have tested positive for Covid-19. Both are fully vaccinated. Soon after Warren confirmed her positive test results, Booker tweeted that he "tested positive for Covid-19 after first feeling symptoms on Saturday." Booker, who reported "relatively mild" symptoms, said, "I'm beyond grateful to have received two doses of vaccine and, more recently, a booster—I'm certain that without them I would be doing much worse." (Saric/Falconer, Axios, 12/19)

• New York: Many Broadway shows announced plans to cancel performances as an increasing number of cast and crew members test positive for the coronavirus. All Broadway theaters in New York currently require guests to show proof of vaccination and wear masks during performances. The economic impact of these closures could be significant. Broadway shows created roughly 97,000 jobs in New York City and contributed around $14.7 billion to the city's economy in the 2018-2019 season, according to the Broadway League. Just one missed performance for a show that grosses $1 million a week costs around $125,000. (Frazier, Axios, 12/18)