Wednesday, 4/20: Following a recommendation by CDC, the DOJ appealed to the Eleventh Circuit the ruling by a federal judge in Florida striking down the mask mandate for airlines and other public transportation. The DOJ did not request a stay of the ruling.

Wednesday, 4/20: An Illinois appellate court vacated a temporary restraining order which had prevented Chicago Public Schools from enforcing its vaccination policy.

Tuesday, 4/19: The Fourth Circuit ruled that federal employees challenging the federal employee vaccine mandate cannot bring suit, as they must raise their challenge through the process laid out in the Civil Service Reform Act.

Tuesday, 4/19: The Nebraska Department of Health and Human Services voluntarily dismissed its lawsuit against the Douglas County Health Director, Dr. Lindsey Huse, who had issued a temporary indoor mask mandate for the City of Omaha. This dismissal comes after the Omaha City Council voted to remove the director’s power to enact health measures without permission from the city council.

Monday, 4/18: A federal judge in Florida struck down the mask mandate for airlines and other public transportation, writing that the mandate falls outside the scope of the Public Health Service Act as “[w]earing a mask cleans nothing.”

Monday, 4/18: The Supreme Court declined to hear a challenge brought by four NYC teachers against the city’s vaccine mandate for public school employees.

Saturday, 4/16: Philadelphia businesses and residents filed a lawsuit against the city over its reinstated indoor mask mandate. Less than a week later, the Board of Health voted to rescind the mandate.