OBJECTIVE To analyze the characteristics of imported malaria cases in West China Hospital of Sichuan University in recent years and to provide reference for the prevention and control of imported infectious diseases.METHOD A retrospective analysis of 62 cases of imported malaria from abroad reported in West China Hospital of Sichuan University from 2012 to 2023 were retrospectively analyzed.RESULTS From 2012 to 2023,62 cases of imported malaria were reported,including 49 cases(79.03％)of falciparum malaria,10 cases(16.13％)of vivax malaria,and 3 cases(4.84％)of ovale malaria.Among the imported malaria cases,9 cases were severe malaria,with 8(16.33％,8/49)severe cases caused by falciparum malaria,of which 6 cases(75.00％,6/8)were cere-bral malaria.The cases were mainly Chinese citizens and young-to-middle-aged adults,with the highest concentra-tion in the 40-49 age group(37.10％,23/62).There were more males than females,with a male-to-female sex ratio of 11.4∶1;the predominant occupation was worker(38.71％,24/62).The primary region of importation was Africa(90.32％,56/62).There was importation throughout the year,with no distinct seasonal distribution pattern.Two of the admitted cases died(severe cases of falciparum malaria,which developed into cerebral malari-a),while the rest were improved and discharged from the hospital after standardized treatment.CONCLUSIONS Cases of imported malaria from abroad are characterized by Chinese nationality,males,young adults and workers.The type of malaria is mainly falciparum malaria,and the prognosis for most cases is relatively good.It is necessary to strengthen the construction of joint prevention and control systems and other long-term mechanisms,and to continuously and scientifically implement various strategies and measures to prevent the re-emergence of malaria through imported ca-ses,in order to avoid the occurrence of secondary cases resulting from imported infections.

OBJECTIVE To analyze the characteristics of imported malaria cases in West China Hospital of Sichuan University in recent years and to provide reference for the prevention and control of imported infectious diseases.METHOD A retrospective analysis of 62 cases of imported malaria from abroad reported in West China Hospital of Sichuan University from 2012 to 2023 were retrospectively analyzed.RESULTS From 2012 to 2023,62 cases of imported malaria were reported,including 49 cases(79.03％)of falciparum malaria,10 cases(16.13％)of vivax malaria,and 3 cases(4.84％)of ovale malaria.Among the imported malaria cases,9 cases were severe malaria,with 8(16.33％,8/49)severe cases caused by falciparum malaria,of which 6 cases(75.00％,6/8)were cere-bral malaria.The cases were mainly Chinese citizens and young-to-middle-aged adults,with the highest concentra-tion in the 40-49 age group(37.10％,23/62).There were more males than females,with a male-to-female sex ratio of 11.4∶1;the predominant occupation was worker(38.71％,24/62).The primary region of importation was Africa(90.32％,56/62).There was importation throughout the year,with no distinct seasonal distribution pattern.Two of the admitted cases died(severe cases of falciparum malaria,which developed into cerebral malari-a),while the rest were improved and discharged from the hospital after standardized treatment.CONCLUSIONS Cases of imported malaria from abroad are characterized by Chinese nationality,males,young adults and workers.The type of malaria is mainly falciparum malaria,and the prognosis for most cases is relatively good.It is necessary to strengthen the construction of joint prevention and control systems and other long-term mechanisms,and to continuously and scientifically implement various strategies and measures to prevent the re-emergence of malaria through imported ca-ses,in order to avoid the occurrence of secondary cases resulting from imported infections.