In 1998-1999, 124 human sera samples (with haemorrhagic fever syndrome) which were negative for dengue antibodies and 27 rodent sera were collected for detection of hantavirus antibodies. These sera were assayed at first by the HI, MAC-ELISA with four-types of dengue virus, Japanese encephalitis and Chikungunya antigen. Among 124 sera colleced from patients with haemorrhagic fever syndrome, 4.03% were positive with Hantanvirus; and 3.37% rodent sera were positive with hantanvirus.
virues ; Fever ; Hantaan virus

Dengue virus HA antigens in infected cells from Aedes albopictus clone C6/36 can be produced easily. Their titers that prepared were from 64 to 128 times higher than from baby mouse brain. The method is recommended as an initial step in the concentration of Dengue virus propagated in tissue cullure, as it is simple, rapid and inexpensive
Dengue Virus ; Hemagglutinins