Mary Duseau, Paul Thomas

Roka Biosciences, a manufacturer of molecular diagnostics for foodborne pathogens, has named Mary Duseau as president and CEO. She succeeds Paul Thomas, who held those posts since 2009 and will now serve as chairman of the firm's board of directors. Duseau has been senior vice president and chief commercial officer at Roka since 2015. She was previously global sales director at Andor Technologies, a division of Oxford Instruments, and held various sales and management positions at PerkinElmer between 2000 and 2012.