OBJECTIVE: To analyze the epidemiological characteristics of overseas imported malaria reported in Chongqing City from 2011 to 2015, so as to provide the evidence for improving the imported malaria control strategies. METHODS: The epidemiological data of overseas imported malaria cases were collected and analyzed descriptively for the species, original countries, diagnosis and treatment in Chongqing City from 2011 to 2015. RESULTS: A total of 148 overseas imported malaria cases were reported in Chongqing City from 2011 to 2015, in which 96 (65.54%) cases were falciparum malaria, and 37 (24.32%) cases were vivax malaria; 125 (84.46%) cases were infected in Africa, and the rest of 23 (15.54%) cases were infected in Southeast Asia. Most of the patients were 30 to 50 years old male workmen, and the ratio of male to female was 11.42:1. There was no obvious seasonal distribution among the reported timelines of the cases; however, there were two small peaks from June to August and from January to February. The median interval time of imported malaria cases from malaria onset to see a doctor was 1 day and from seeing the doctor to get malaria diagnosis was 2 days. The patients' first selected institutions were county medical institutions (50 cases, 33.78%), then provincial medical institutions (36 cases, 24.325%) and private doctors (20 cases, 13.51%), and only 79 (53.38%) patients got malaria diagnoses in their first selected institutions. The standard treatment were provided to 142 (95.54%) cases. There were 43 (29.05%) patients had serious complications and three patients were dead. CONCLUSIONS: It is very important to enhance the multi-sector's collaboration to establish the collaborative investigation mechanism for screening malaria patients, and strengthen malaria health education for overseas workers and training courses in primary care medical institutions.
OBJECTIVE: To analyze the epidemiological characteristics of overseas imported malaria reported in Chongqing City from 2011 to 2015, so as to provide the evidence for improving the imported malaria control strategies. METHODS: The epidemiological data of overseas imported malaria cases were collected and analyzed descriptively for the species, original countries, diagnosis and treatment in Chongqing City from 2011 to 2015. RESULTS: A total of 148 overseas imported malaria cases were reported in Chongqing City from 2011 to 2015, in which 96 (65.54%) cases were falciparum malaria, and 37 (24.32%) cases were vivax malaria; 125 (84.46%) cases were infected in Africa, and the rest of 23 (15.54%) cases were infected in Southeast Asia. Most of the patients were 30 to 50 years old male workmen, and the ratio of male to female was 11.42:1. There was no obvious seasonal distribution among the reported timelines of the cases; however, there were two small peaks from June to August and from January to February. The median interval time of imported malaria cases from malaria onset to see a doctor was 1 day and from seeing the doctor to get malaria diagnosis was 2 days. The patients' first selected institutions were county medical institutions (50 cases, 33.78%), then provincial medical institutions (36 cases, 24.325%) and private doctors (20 cases, 13.51%), and only 79 (53.38%) patients got malaria diagnoses in their first selected institutions. The standard treatment were provided to 142 (95.54%) cases. There were 43 (29.05%) patients had serious complications and three patients were dead. CONCLUSIONS: It is very important to enhance the multi-sector's collaboration to establish the collaborative investigation mechanism for screening malariapatients, and strengthen malaria health education for overseas workers and training courses in primary care medical institutions.
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Keywords:
Chongqing City; Control strategy; Epidemiological characteristic; Imported case; Malaria