An ACT Health spokesman said 62 people had been tested for tuberculosis with no positive results.

''There will be no further comment on this matter, or on the ongoing contact tracing and testing,'' the spokesman said.

ACT Health has come under fire from two mothers of newborns who were exposed to TB.

The children will have to take medication for the next six months.

Queanbeyan doctor and mother Jeannie Ellis said her newborn baby was exposed when another woman's partner was allowed to stay overnight in a shared maternity ward.

''It is certainly not common practice in shared wards. Men can't stay with other women after you've had a baby. In frank terms you're bleeding, you're learning to breastfeed, you have to go to the toilet. It's an extremely sensitive and exciting time, but it's also a time when you need an enormous amount of privacy. Nursing staff tell you unequivocally men can't stay in shared ward beds,'' Dr Ellis said.

''My exposure to active tuberculosis was significantly increased because of a lack of adherence to protocol. My husband wasn't permitted to stay, those were the words from the nurse, 'It's against hospital policy for men to stay overnight in shared rooms'.''

Dr Ellis said she was waiting for an apology from ACT Health.

Chief health officer Charles Guest said there was no breach of policy in relation to ''rooming in'' of a person at Canberra Hospital maternity unit.

An ACT Health spokeswoman said the second allegation, that a partner had been refused permission to stay overnight in the maternity unit, was being investigated.

''Whether there was some problem is something that does require investigation and that's happening now,'' Dr Guest said.

''We're very sorry this has happened, we're very sorry for the distress. But it has happened and then it's a question of making the best follow-up to promote safety and wellbeing for everybody concerned.''

Opposition health spokesman Jeremy Hanson has called for a review of the incident.