The data on imported malaria and epidemiological investigation of individual cases reported in Xuchang City,Henan Province,were collected from the Infectious Disease Surveillance Reporting and Management Sys-tem,and the Parasitic Disease Prevention and Control Information Management System from 2017 to 2023.The epide-miological characteristics and case diagnosis were analyzed.There were 65 malaria cases reported in Xuchang City,in-cluding 48 Plasmodium falciparum infections(73.8％),10 P.ovale infections(15.4％),2 P.malariae infections(3.1％),3 P.vivax infections(4.6％)and 2 mixed infections(3.1％).The male-to-female ratio was 20.7∶1.The cases were mainly reported by districts of Jian'an(30.8％,20/65),Yuzhou(26.2％,17/65)and Weidu(18.5％,12/65),and there was no apparent seasonal variation in distribution.The time interval P50 between the onset and diagnosis of the cases was 2 days(P25,P75:1 d,4 d).The median time interval from onset to diagnosis for cases with and without a history of malaria was 2 days(1,4),with no statistically significant difference(Z=-0.636,P＞0.05).The malaria diagnosis accuracy rate within 3 days after medical consultation was 83.1％(54/65).The proportion of malaria cases reported by provincial,municipal,and county(district)medical facilities in Xuchang City from 2017 to 2023 was 7.7％(5/65),50.8％(33/65),and 41.5％(27/65),respectively.The proportion of initial diagnosis medical facilities at the provincial,municipal,county(district),and rural levels was 7.7％(5/65),29.2％(19/65),29.2％(19/65),and 33.9％(22/65),re-spectively(x2=7.999,P＜0.05)and their malaria diagnosis accuracy rates were 5/5,17/19,16/19,and 0(0/22),re-spectively(x2=47.228,P＜0.01).The reported cases were all imported cases,mainly from Nigeria(20.0％,13/65),the Democratic Republic of Congo(15.4％,10/65),and Guinea(9.2％,6/65)in Africa.
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万方数据
