Latest figures show there's 638 patients in hospital, while in ICU there are 130 - which is the highest since February.
Chief Medical Officer Tony Holohan says they're aware the public's worry around Covid-19 has increased but says people are following the public health advice.
Professor at RCSI and an ICU consultant at Beaumont, Ger Curley, says the mood in intensive care units is grim.
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