Public Health teams. The integrated data from 350 GP practices, 14 NHS Providers, 9 Local Authorities and Ambulance service was built and operational with IG in place in 90 days.CIPHA was the consistent and coherent platform for intelligence to support the pandemic and with University of Liverpool colleagues was the basis of the data to enable the first asymptomatic COVID mass testing programme and local events opening programme – both of which then informed UK Government national policy. In Cheshire and Merseyside ICS the programme has become mainstreamed in supporting the ICS population health objectives and a scaled transformation programme.. It has also expanded to develop a population health collaboration programme across 12 ICS (17 million population) to enable ICS to share learn and accelerate their population health and associated research capabilities.