DENGUE SITUATION IN THE WORLD AND VIETNAM ACCORDING TO WILDER-SMIT...

1.1.Dengue situation in the World and Vietnam According to Wilder-Smith (2019) study over 13 years (2000-2013) showed that the number of dengue cases increased by 400% globally. Author Lee (2017) stated that Vietnam is one of the countries with the highest prevalence of dengue in the region. dengue has direct effects on the health, economy and society, especially countries in the dengue regions endemic as Vietnam [21]. The research of Do T.Thanh Toan (2015) stated that dengue is common throughout the country, the North mainly develops in the summer, autumn, the South and the Central is hot all year round, so dengue circulates all year. [23]. SXHD gradually increased and spread to 63 provinces and cities, from populous cities to rural towns, the time gap between services was also closer [23], [26]. Therefore, it is important to characterize the vector of disease transmission, and then apply some appropriate Aedes mosquito control measures, especially in some provinces with highly endemic dengue [26]. Khanh Hoa is the province with the highest prevalence of dengue per