Health negotiators from rich and poor countries have failed to reach a deal on virus sharing to produce vaccines. The World Health Organisation is pushing for virus samples to be circulated to laboratories, world wide to ensure sufficient vaccines are produced in the event of a pandemic. The current alert over swine flu has added an urgency to the talks which began in the wake of the 2007 bird flu scare.In Japan, three students who have not travelled abroad, are being closely monitored since they developed the H1N1 flu strain. It is not clear if this new independent cluster is sufficient proof to show the disease is spreading in a region outside North America. If it is then the WHO might declare a full pandemic. And in Turkey,officials have confirmed their first H1N1 flu cases . All of them involve air passengers arriving from the United States. Thirty-eight countries have now confirmed cases of the flu strain which is a mix of swine,human and avian viruses. Around 8,500 people are said to be infected, with 72 reported deaths.