N.B. doctor says he wasn't 'patient zero' in his city's outbreak

In the spring, Dr. Jean Robert Ngola was singled out as the source of a COVID-19 outbreak in the city of Campbellton, N.B. More than forty cases would later be linked to the outbreak and two people died. But now, an investigation by CBC's The Fifth Estate and Radio-Canada casts increasing doubt on whether he was "patient zero." CBC reporter Judy Trinh tells us more on today's episode of Front Burner.