A new strain of flu that has the potential to become a pandemic has been identified in China.Scientists in the country say the virus has been found in pigs but can infect humans.After the publication of the study, a biologist has said that there is no 'imminent threat' or risk of a new pandemic but it must be watched closely.Researchers say the strain of flu, named G4 EA H1N1, is similar to the swine flu that caused a pandemic in 2009 and possesses "all the essential hallmarks of a candidate pandemic virus".Scientists at Chinese universities and China's Centre for Disease Control and Prevention (CDC) detected the new virus after analysing 30,000 nasal swabs from pigs in slaughterhouses in 10 Chinese provinces between 2011 and 2018.Writing.