The head of Public Health England has said he is "sorry beyond words" that news of the organisation's demise was leaked to the media before he could tell staff.
The coronavirus work of Public Health England (PHE) is to be merged with NHS Test and Trace to form a new body designed specifically to deal with pandemics, the Sunday Telegraph reported last week.
Other functions like tackling obesity could be handed over to local councils in future, the newspaper reported on Sunday, citing a Government minister.
The new pandemic organisation, the Institute for Health Protection, could be ready to go in September.
Duncan Selbie, chief executive of PHE, said that no organisation could get “everything right” and he praised staff for their efforts during the coronavirus pandemic in a note to staff seen by Health Service Journal.
The note says: “I am sorry beyond words at the way that decisions about our future have been briefed to the media before I have had the chance to explain them.
“The Prime Minister and Secretary of State wish to recreate an organisation with a sole focus on health protection and to bring together our health protection services with the budgets and people of the NHS test-and-trace programme to create a new national institute for health protection.
“The aim is to boost our unique scientific capability and world leading health protection expertise with much needed new investment.
“The future arrangements for delivering everything else we do for the country including on health improvement and our corporate services will be worked through over the coming weeks and months and will, of course, include formal consultation and the proper HR processes to ensure this is handled transparently and fairly.
“Any organisation that says it got everything right is wrong and no public health body enters a pandemic expecting to look the same as a consequence.
“However, no one remotely close to our work of the past eight years, and since January on the pandemic would agree with the headlines that this change reflects ‘pandemic failure’ on our part.
“Certainly this is not what the Secretary of State believes or says in public or private. No public body has done more to protect the health of the people than PHE nor has more reason to be proud of its contribution.
“Equally on health improvement over the years on cancer, tobacco, obesity and air quality amongst much more, and crucially in support of our colleagues in local government, the NHS and our work internationally on behalf of the UK.”
The Government has been slammed by doctors', NHS leaders and academics in the wake of reports that it is planning to scrap PHE.
And ministers faced fresh criticism on Monday, with the union Unite saying that PHE is being used as a “fall guy” for the Government’s Covid-19 failings, while the Chartered Society of Physiotherapy (CSP) said that “scapegoating PHE is unfair and potentially dangerous”.
Unite national officer for health Jackie Williams said: “It is clear that Public Health England and its dedicated staff are being lined up to be the fall guy for continual bungling by Boris Johnson and his ministers since coronavirus emerged at the beginning of the year.
“The catalogue of errors ranges from the lateness to lock down in March to the failure to have a so-called ‘world beating’ test-and-trace system in place by June.
“In their desperation to find anyone or any organisation to blame for their own failings, Boris Johnson and Health and Social Care Secretary Matt Hancock are lining up PHE and its staff to be the fall guy.”
Karen Middleton, chief executive of the CSP, said: “There have clearly been failings in handling the Covid pandemic, but scapegoating PHE is unfair and potentially dangerous.
“A range of people and agencies are accountable for the handling of the pandemic, not just PHE. This feels like a crude attempt to shift blame.”
Christina Marriott, chief executive of the Royal Society of Public Health, said: “We question the timing of an announcement to scrap our national public health agency in the midst of a global pandemic and before any public inquiry has started, let alone reported.
“We recognise that there have been some serious challenges in terms of our response to Covid-19, including the timing of the lockdown, the ongoing ineffectiveness of Tier 2 Track and Trace and postcode-level data previously not being available to Directors of Public Health.
“Multiple lessons need to be learnt before solutions can be in place in advance of the winter. To do otherwise risks avoidable mistakes in subsequent waves of the pandemic which will only harm the public’s health further."
Ms Marriott added that the Government should "reverse its sidelining of public health" and commit to tackling obesity and diabetes among British people.
A No 10 spokesman said: “We believe PHE have played an important role in our response to this pandemic and have worked on important issues such as detection, surveillance, contact tracing and testing, and we’ll continue to work closely with them.”
Asked whether the Government has asked any outside consultancies for advice on whether to shut down Public Health England, he added: “If you look at the road map and the wording, what we say around structures, we’ve been clear we must learn the right lessons from the crisis and act now to ensure structures are fit to cope with future epidemics.”
Responding to reports that Public Health England is to be replaced, the No 10 spokesman said: “We have always said we must learn the right lessons from the crisis and act to ensure Government structures are fit to cope.
“But I would make the point that PHE have played an integral role in our response to this unprecedented pandemic, working on important issues such as detection, surveillance, contact tracing and testing.”
A Department of Health and Social Care spokesman said: “Public Health England have played an integral role in our national response to this unprecedented global pandemic.
“We have always been clear that we must learn the right lessons from this crisis to ensure that we are in the strongest possible position, both as we continue to deal with Covid-19 and to respond to any future public health threat.”