Cabinet Ministers will discuss the latest setbacks for the vaccination programme when they meet this morning.
The Taoiseach is to be briefed by the HSE and the vaccines task force as work continues on redrawing the roll-out plan.
Re-drawn plans to take account of the problems with the availability of the AstraZeneca and Johnson and Johnson vaccines could be ready as early as today.
But senior figures in the Department of Health were not expecting them to be finalised by the time the cabinet meets at 10 am.
Taoiseach Micheál Martin will be briefed by the HSE and the head of the vaccine task force Brian MacCraith, following on from discussions they had with Health Minister Stephen Donnelly last night.
There's an anxiousness among some cabinet Ministers over what the pause in Johnson and Johnson delivery will mean if it becomes a long term issue, though as just 41,000 doses were due to arrive this month there's hopes the time could be made up.
Minister Donnelly has also said all those who were due to have an AstraZeneca vaccine this week, but had appointments cancelled, will know how they stand in the coming days.