Situation of haemorrhagic dengue fever (DHF) at Khanh Hoa province

ABSTRACT

The number of haemorrhagic dengue fever hospitalized at Khanh Hoa province was high during 1989-1998. The recorded peak of outbreak in 1992, 1995 and 1998 were 2212, 5358 and 7454 cases, respectively. The number of patients was high from May to November. 67,1% were the children under 15 years old. The patients at Nha Trang consisted highly 76,1%, followed by Cam Ranh 11,1%, Dien Khanh 95%. The vector controlling indexes were high during 1995-1997, the intervention was decreased, but it quickly returned to the beginning.