ĐẶC ĐIỂM DỊCH TỄ HỌC, YẾU TỐ NGUY CƠ BỆNH SỐT MÒ TẠI MỘT SỐ ĐỊA BÀN TRỌNG ĐIỂM

Abstract

Objectives: To describe the epidemiological characteristics, risk factors of scrub typhus in some key areas. Subjects and methods: a cross-sectional descriptive study, sampling and testing by ELISA method to detect anti-Orientia tsutsugamushi antibodies on 21,630 serum samples collected from 12 provinces in 3 regions of the Northwest, the Central Highlands and the Southwest. Results: The percentage of people with general anti-Orientia tsutsugamushi antibodies was 9.88%; The highest is in the Northwest at 12.17%, followed by the Central Highlands at 11.04% and the lowest in the Southwest at 6.42%. The highest rate of infection was in the 36-55 age group (11.17%) while the lowest rate was in the under 15-35 age group (8.54%). The proportion of people with anti-Orientia tsutsugamushi antibodies in the Kinh ethnic group was 13.69%, higher than that of the other ethnic groups (6.00%). The infection rate in the group of people working in agriculture was the highest at 12.47% compared to some other occupations. The proportion of people with anti-Orientia tsutsugamushi antibodies in the community living in the areas with Savan habitat characteristics and regenerating forest, respectively, is 11.26% to 11.38% higher than the population living in the area. primary forest (6.17%). Conclusion: The overall rate of people carrying anti-Orientia tsutsugamushi antibodies was 9.88%. There are differences in the rate of infected people across regions, genders, ages, ethnicities, occupations and regions.