Epidemiological characteristics of mosquito-borne diseases in Liuzhou, 2005-2016

Abstract

Objective To analyze the epidemiological characteristics of mosquito-borne diseases in Liuzhou city during 2005-2016, so as to provide scientific basis for the risk assessment and the prevention and control of mosquito-borne infectious diseases. Methods Descriptive epidemiological method was adopted. Results A total of 149 cases of 3 kinds of mosquito-borne diseases were reported accumulatively in Liuzhou during 2005-2016 with the annual average incidence of 0.35/10 000, of whom there were 72 cases (3 cases died) with epidemic encephalitis B, 74 cases with malaria and 3 cases with dengue fever (all were imported cases) . Sanjiang County had the highest mosquito-borne disease incidence of 1.29/10 000. Onset time mainly concentrated in June to August, which was accounted for 73.15% (109/149) . The average onset age was 35.93 years old, and male and female ratio was 7.22∶1. Epidemic encephalitis B was mainly distributed in under 10 years old age group with local cases. Malaria was mainly distributed in between 20 to 50 years old group, 39 cases were imported cases. Conclusions The mosquito borne infectious diseases in Liuzhou are mainly children B encephalitis and imported malaria cases, and case monitoring and media comprehensive treatment should be strengthened. Key words: Arbovirus infections; Epidemiological characteristics; Surveillance