A methodological approach to intra-action reviews - application and adaptation of existing global guidance during the COVID-19 pandemic response in Ireland, 2021.

Many countries were under-prepared for the arrival of an emergency such as the COVID-19 pandemic. An intra-action review allows countries, systems and services to reflect on their preparedness and response to date, and revise their policies and approaches as needed. We describe the approach to undertaking an intra-action review of Ireland's Health Protection COVID-19 response during 2021. A project team within National Health Protection developed a project plan, identified key stakeholders, trained facilitators and designed workshop programmes, employing integrated collaborative web tools. Multidisciplinary representatives participated in three half-day, independently facilitated workshops on challenges and solutions within specific response areas: communication, governance and cross-cutting themes such as staff well-being. An all-stakeholder survey sought further in-depth detail. Participants reviewed the ongoing pandemic response in terms of good practice and challenges and recommended implementable solutions. We customised our mixed-methods approach using existing ECDC/WHO guidance, producing consensus recommendations during Ireland's fourth wave of COVID-19, with particular focus on pathways to implementation. Our adaptations may help others in formulating and customising methodological approaches. During an emergency, identifying and reflecting on good practices to retain, and areas for strengthening, with a clear action plan of implementing recommendations, will enhance preparedness now, and for future emergencies.

A large national outbreak of COVID-19 linked to air travel, Ireland, summer 2020.

An outbreak of 59 cases of coronavirus disease (COVID-19) originated with 13 cases linked by a 7 h, 17% occupancy flight into Ireland, summer 2020. The flight-associated attack rate was 9.8-17.8%. Spread to 46 non-flight cases occurred country-wide. Asymptomatic/pre-symptomatic transmission in-flight from a point source is implicated by 99% homology across the virus genome in five cases travelling from three different continents. Restriction of movement on arrival and robust contact tracing can limit propagation post-flight.