Public Health England is the expert national agency set up by the UK government on 1st April 2013 to bring together public health specialists from more than 70 organisations, including the former Health Protection Agency (HPA), into a single public health service.
PHE's primary duty is to protect the public from infectious diseases and other environmental hazards. This is a global concern as diseases cross borders so its work is UK orientated but international too.
The agency is also tasked with improving the public's health and wellbeing and reducing health inequalities, improving population health through sustainable health and care services and building the capability and capacity of the public health system.
PHE employs 5,500 staff, mostly scientists, researchers and public health professionals and operates from 15 local centres.