The Rotunda Maternity Hospital in Dublin says just 4 in 10 of its patients are fully vaccinated.
The hospital says the low vaccination rate among inpatients and their partners is partially the reason it's maintaining some Covid-19 restrictions.
It says when vaccination rates are higher among pregnant women and their partners they will lift restrictions, once safe to do so.
Master of the Rotunda, Professor Fergal Malone says the hospital won't allow vaccinated people unrestricted access in the interim.
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