The appellants were notified by public health authorities of potential exposure to tuberculosis at the respondent hospital.
Although none tested positive, they brought a class action claiming damages for psychological harm caused by the notification.
The motion judge granted summary judgment dismissing the claims because the appellants did not suffer a recognizable psychiatric illness.
On appeal, the appellants argued that the Supreme Court of Canada in Mustapha eliminated the recognizable psychiatric illness threshold.
The Court of Appeal dismissed the appeal, holding that Mustapha did not change the law and that a recognizable psychiatric illness remains the threshold for compensable psychological injury in negligence.