EPIDEMIOLOGICAL CHARACTERISTICS OF DENGUE HEMORRHAGEAL FEVER IN THE PERIOD 2017 - 2023 IN BINH DINH PROVINCE

The study was conducted to: (1) Describe the epidemiological characteristics of Dengue hemorrhagic fever (DHF) ; (2) Describe the transmission vector distribution; (3) Determine the relationship between weather factors and the outbreak of Dengue hemorrhagic fever in Binh Dinh province in the period of 2017 - 2023. The results show that the epidemic of Dengue hemorrhagic fever in the period 2017 – 2023 was complicated, the incidence rate was high, the average of incidence of Dengue hemorrhagic fever was 288.3/100,000 people/year. The test results showed the circulation of 3 virus types, DEN1, DEN2 and DEN4, of which DEN2 wass dominant, and no occurrence of the DEN3. The highest incidence rate per 100,000 people was in mountainous districts (529.9), followed by the midlands (424.9), plains (257.7) and the lowest in urban areas (214.3). There was a positive linear correlation between the monthly average rainfall and the monthly average number of new cases, and the inverse correlation between the monthly average number sunshine hours and the monthly average number of new cases.