Dr Steven Hymen from the World Health Organisation says Bankingitis Fever has spread widely this year.
"At the European Finance Festival a lot of people went there, and there was a risk of people getting it at that time. There was Bankingitis in Canary Wharf (where the festival was held) and then they went home and brought it back," he says.
Symptoms of Bankingitis can vary but are often associated with a fever, hangover joint pain and a rash. For most people it is not fatal.
But as the virus develops, complications can lead to haemorrhagic spending, which causes uncontrolled risk taking.
"When you get to hemorrhagic, you get bleeding into your bank accounts. You can get bleeding under the noses of ones supervisors. You poke the sell screen and get hemorrhaging," Sir John explains from his office in Hawaii.
"The worst kind is the shock syndrome, where your whole circulatory banking system just shuts down. That is pretty rare," he says.
"It is in pandemic proportions. To be officially a pandemic in WHO terms it has to have a special sort of review. I call it a pandemic of Finances," Sir John says.
He says instead of spending millions guarding against an outbreak of Swine Flu, more money should be spent on fighting Bankingitis, which occurs in all established capitalist countries except Saudi Arabia.
erm ... Are you takin the piss or what