An investigation into an infection control lapse at a private Ottawa clinic has so far turned up no links between the lapse and cases of hepatitis B, hepatitis C or HIV.

Dr. Christiane Farazli's clinic was under investigation after an inspection in late May found some infection prevention and cleaning protocols were "not always followed."

Ottawa Public Health said the concerns surround endoscopies, a procedure in which a medical instrument is used to examine the interior of a hollow organ or cavity of the body.

The lapse affected approximately 7,000 patients.

90 per cent of patients contacted

Ottawa Public Health said 90 per cent of the patients who underwent endoscopies have been contacted.

The health agency said the number of cases is consistent with prevalence of the diseases in the general population and could not link the diseases to the lapse.

The investigation found 369 patients showed blood test evidence of hepatitis B infection at some point in their lifetime, while 39 patients showed evidence of hepatitis C infection. None tested positive for human immunodeficiency virus (HIV).

"The important thing about those numbers is that they are in line with what we would expect if we tested a similar number of people in the general population," said Dr. Vera Etches, who is with Ottawa Public Health.

Ottawa Public Health will next test samples for genetic tracers that might better determine if there is any link between the diseases and the lapse.