HK experts see no mutation in swine flu - paper

Three Hong Kong health experts investigating the outbreak in Sichuan province have identified the bacteria as Streptococcus suis and found no evidence that the victims had been infected by any other bacteria, the South China Morning Post reported. 

Some scientists had speculated that the disease could be a new variant of swine flu or a different bug altogether given the unusually high number of people who have contracted it and its high mortality rate.