Four workers at Fort Worth-based Bell, a defense and commercial aviation company that specializes in building helicopters and developing drone technology, have tested positive for coronavirus, officials said. One employee has fully recovered and will return to work Tuesday, a company spokeswoman said. The other three workers are recovering at their respective homes. Two of the workers were based at Bell’s Fort Worth plant, just south of Hurst, and a third employee was based in Grand Prairie. A fourth case involved a worker at Bell’s facility in Mirabel, Canada.

Originally published April 13, 2020, 4:12 PM.