In health news, the U.S. government has isolated a man who may have exposed passengers to a deadly strain of tuberculosis on two recent trans-Atlantic flights. Officials are trying to notify passengers who traveled on Air France from Atlanta to Paris or to the U.S. on Czech Air earlier this month.

Dr. Julie Gerberding, director of the U.S. Centers for Disease Control and Prevention: “We are well aware of the fact that taking a measure such as issuing an order of isolation is unusual. In fact, people at CDC don’t recall us doing this since 1963. So, we always want to balance personal liberties with the requirement to protect people’s health.”

The decision marks at least the second confinement of a TB carrier. Twenty-seven-year-old Robert Daniels is being held against his will in a Phoenix hospital ward reserved for sick prisoners.