We have been told for years that a virulent ‘flu pandemic is only a matter of time. Last year, the World Bank forecast it would depress the world economy by 5pc.

Well, it’s here. The outbreak of “swine” ‘flu in Mexico, where 150 people have died as I write, has been classified as a pandemic by the World Health Organization (WHO). There have been a number of cases in the US and a couple in the UK, although no deaths as yet.

With the entire world in the grip of a gathering recession/depression, this is what we don’t need. Britain is already facing a fall in GDP of around 4pc this year, and the effects of the ‘flu outbreak could push that up to depression levels (10pc fall in output from peak to trough) with massive implications for unemployment.

The City of London does have emergency plans for just such an occurrence and they are now being activated. The nation as a whole has enough antiviral drugs, such as Tamiflu, to cover half the population, but has rejected stockpiling face masks because they have to be replaced frequently and could be easily contaminated.

Already, markets are feeling the pinch, many headed south, while banks may need even more capital before this episode is over.

On Tuesday, the Bank of England began the arcane process of printing money by buying back the government’s debt.

The decision has had mixed reviews from the press.

The potential inflationary effects are the main are of concern. Others take the line that the Bank could do little else to boost the money supply, while a few politicians have pointed out that broad money (M4) is already rising by 20+ percent.

A good primer on the pros and cons is given by the BBC’s Business Editor, Robert Peston on his blog:

Will QE work?

Not to be outdone the BBC’s Economics Editor, Stephanie Flanders, also weighs in with an informative piece on how the Americans are doing it — mainly by buying corporate bonds, not Treasuries:

Ahead of the curve

My favourite is by the Daily Mail’s City Editor, Alex Brummer, who today gives an emphatic thumbs down to the whole operation.

Bank’s great experiment may prove gamble too far

Syntagma also greeted the “new dawn” of lumpen monetarism with incredulity:

Watch out for the mashed potato machine

Food for thought.

The International Monetary Fund, as predicted, is now forecasting that British gross domestic product will contract 2.8pc this year, worse than the U.S., the eurozone and Japan.

Last year we reported here on the first use of the “T” word (trillion) for losses across the banking sector. Now we’re into the “2T” word, a graphic indication of how much conditions are deteriorating around the globe.

The IMF expects the US economy to contract 1.6 percent; Japan to shrink 2.6 percent and the eurozone to decline 2 percent. Overall, the IMF expects the global economy to expand 0.5 percent, its weakest showing since the Second World War.

Economists at the IMF also estimated that bank losses may reach $2.2 trillion, almost twice the $1.4 trillion the organization predicted in October.

It warned that, “unless stronger financial strains and uncertainties are forcefully addressed, the pernicious feedback loop between real activity and financial markets will intensify, leading to even more toxic effects on global growth.”

In Britain, the bank bail-out is already projected to take national debt to 8 percent of GDP, and today the Institute Fiscal Studies warned that national debt levels are unlikely to return to the pre-crisis levels for more than 20 years.

The UK Daily Telegraph is reporting that an unnamed rating agency is set to cut Britain’s credit rating following yesterday’s calamitous fall in bank shares and the government’s astonishing blank cheque for the banks.

Edmund Conway writes that this is only a whisper, but given the S&P reduction in Spain’s rating just days ago, it has the ring of truth.

Should it happen, it will put up the interest paid on “gilt-edged” government bonds, and filter through to almost every part of the economy.

Unlike Spain and Ireland, however, Britain has the advantage of a free-floating exchange rate that acts as a safety valve for the economy when times are tough. With interest rates approaching zero, more strings become available to pull, despite the apparent loss of monetary control.

However, the astonishing 96 percent fall in the share value of giant international lender, Royal Bank of Scotland — now 70 percent owned by the government — has led to some commentators calling the UK “Iceland on Thames”.

It would be a big blow to the fragile ego of Gordon Brown in particular. He knows that “his watch” has lasted 12 years and a catastrophe will destroy what little reputation he has left.

Should Brown be placed on suicide watch?