The Handling Process of the Two Imported Mpox Cases at Chongqing Port
Objective To review the course of illness,epidemiological characteristics,and epidemic response measures for two imported Mpox cases at Chongqing Port,and to provide reference for future mpox prevention and control measures at ports.Methods A field epidemiological investigation was conducted on the cases.Specimens including pharyngeal swabs,nasopharyngeal swabs,and vesicle fluids were collected from the cases,and real-time fluorescent quantitative polymerase chain reaction was used to detect mpox virus nucleic acid.Results Case 1 ex-perienced high-risk male sexual activity in a European country on September 3,2022,with upper respiratory symp-toms on September 9 and a rash on September 11.After returning to China on September 14th,he voluntarily re-ported the relevant symptoms to the doctors at the quarantine point.His oral and pharyngeal swabs and other samples were all positive for Mpox virus,and he was confirmed as a Mpox case on September 16th.The genetic se-quencing results showed that the Mpox virus infected by the case belongs to the B.1 branch of the West African strain.Case 2 entered from Thailand on September 9,2023 and was tested by customs at Chongqing Jiangbei Air-port.It was found that he had a history of fever in early August,and on August 12,he developed macular papules on the inner thigh,which quickly healed from scabbing and showed no other clinical symptoms.Based on the patient's clinical manifestations,epidemiological history,and laboratory testing results,it is confirmed as a case of Mpox.Conclusion Based on comprehensive epidemiological investigation and laboratory results,there is still a risk of mpox virus importation at the port,and it is necessary to strengthen port health quarantine work to prevent mpox cases from being imported.
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