China’s state media have confirmed that three more people have died in from the new strain of H7N9 bird flu virus. These new death have raised the death toll to 35 with the number of infections rising to 130.

Chinese scientists have claimed that the virus has only been transmitted to humans from chickens, however the World Health Organization (WHO) says 40 percent of people infected with H7N9 had no contact with poultry.

The first confirmed cases of the H7N9 bird flu virus where records in March of this year. News of the virus has had an alarming effect on both demand and prices for China’s poultry.

Chinese authorities have already killed thousands of chickens, ducks and geese in an attempt to stop the virus spreading.

The U.S. Center for Disease Control and Prevention has said the current strain of bird flu cannot start a pandemic but notes there is no guarantee it will not mutate and cause a serious pandemic.