The Irish Department of Business, Enterprise and Innovation published guidance on Business Continuity Planning responding to COVID-2019. It includes a checklist of preparatory actions and Health Protection Surveillance Center Advice and Guidance.
This guidance is available here: https://www.gov.ie/en/publication/2f5d5f-business-continuity-planning-checklist-of-preparatory-actions-in-res/
Further the Health and Safety Authority also published this summary of information: https://www.hsa.ie/eng/news_events_media/news/news_and_articles/coronavirus.html
You will find handwashing guidance signage here.
For guidance from the UK government refer to the links below: