On the 28th, Zhang Boli, an academician of the Chinese Academy of Engineering, was interviewed when attending the 6th Changbai Mountain International Pharmaceutical and Health Industry Development Forum and said that the virus strain in this round of epidemic in Nanjing has been identified as "Delta", which is more infectious and more toxic. .
Due to the mutation of the virus, there have been some cases of infection after vaccination, but according to previous experience, the preventive rate of vaccination can reach more than 90%, and vaccination should continue to be actively promoted.
(Reporter Zhang Boyu)