The HSE says there were very low vaccination rates in this group of women.
28 pregnant women have been admitted to intensive care with Covid-19 since the start of the pandemic.
Another 12 needed ICU care within six weeks of giving birth.
The HSE says there were very low vaccination rates in this group of women.
Of the 35 admitted to ICU since January, 34 hadn't had any Covid vaccine, and one women only had her first dose.