The first report from the Covid inquiry is anticipated to outline the shortcomings and failures in the UK's pandemic preparedness.
At midday, Baroness Hallett, the chair of the public inquiry, will present her findings.
The status of the healthcare system, personal protective equipment (PPE) inventories, and the pre-planning will all be included in her report.

This is the first of at least nine studies that address a wide range of topics, including vaccinations, the effects on children, and political decision-making.

During the hearings for this module, last year, 69 experts and politicians, including former Prime Minister David Cameron and Health Secretaries Jeremy Hunt and Matt Hancock, gave evidence.

The inquiry heard much of the UK preparations had been based on planning for a flu virus.
This meant an over-reliance on vaccines and antivirals that would have no impact on a Covid virus and an acceptance only so much could be done to curb the spread of a new virus.

Mr Hunt told the inquiry the UK should have been paying more attention to Asian countries such as Taiwan, Singapore and South Korea, which had seen earlier outbreaks of two other coronaviruses, severe acute respiratory syndrome (Sars) and Middle East respiratory syndrome (Mers).

Those countries suppressed the initial wave of Covid more effectively, by rolling out targeted test, trace and quarantine systems and establishing border controls.
And this helped reduce the number of deaths and limited the use of lockdowns.
Another issue Lady Hallett is likely to address is why the government failed to act on the recommendations made when the civil service ran Exercise Alice, in 2016, simulating a major Mers outbreak.

Witnesses were also critical of austerity and the state it had left the NHS and public health systems in.
England's former chief medical officer Prof Dame Sally Davies was heavily critical of the state of the NHS, saying it had fewer doctors, nurses, beds and ventilators than in similar countries.
And University College epidemiology professor Sir Michael Marmot said the UK had entered the pandemic with "depleted" public services, leaving it less able to cope.

But George Osborne, the Chancellor between 2010 and 2016, told the inquiry austerity had meant the UK had had the financial resources to deal with the pandemic.
The role of Brexit could also feature.
The inquiry heard a number of Department of Health workstreams relating to pandemic planning had been paused or slowed as planning for a no-deal Brexit had been prioritised.

But former cabinet minister Michael Gove said Brexit planning had increased staffing and made departments work more closely together.
And former Health Secretary Matt Hancock said the same work had secured medical supply chains and prevented hospitals running out of some intensive-care drugs.
Prof Adam Kucharski, from the London School of Hygiene and Tropical Medicine, who advised the government during the pandemic, told BBC News preparedness was a crucial issue and the report's findings would require action.
“We're going to face more pandemic threats in future," he said.
“We need to ask the question, 'If there's a pandemic next year, what do we want a good response to look like and what do we need to be putting in place now to ensure that response is feasible?'”

Trained a my medic Dr Saleyha Ahsan, who worked in hospitals during the first two waves of Covid and is now part of the Covid-19 Bereaved Families for Justice UK group, after losing her father to the virus, said it felt like there had been “zero planning”, with doctors often struggling to get hold of the right PPE
“The rules were changing on a daily basis in the first few weeks - it was ridiculous,” she said.
“We were in the flimsiest of PPE, just a little surgical mask with a white apron.
“It felt like we were making do and the people who were being pushed to the front were healthcare workers."
“It's so, so important for those of us who worked through it, who lost through it, or who have suffered ill health because of it, to really appreciate where things went wrong and who was responsible.”