Zhu Hailun said that, these cases were distributed widely in different places, occurred suddenly. The suspects committed roaming and hidden crimes. The victims found they were victimized and reported the cases to relevant departments after the facts. It was very difficult for the police to detect these cases. After relentless efforts made by the public security organs, 15 suspects have been arrested so far, among them, 6 people were placed under criminal detention, 4 people were formally approved to be arrested. At present, the cases are being investigated in an all-out effort.
After diagnosis and treatment in hospitals, no inferior infectious disease pathogens or toxic chemicals related symptoms have been found so far. No visitor has been hospitalized due to other diseases caused by needle pricking injury, no death case has been found, no case needs to use anti-virus drugs for preventive treatment.