| retrospective serological studies on dengue epidemics in osaka and okinawa. | in japan, dengue epidemics were recorded once before the end of world war ii (1942-1945) on the main islands and several times (1893-1955) on the okinawa islands. blood samples were obtained from residents in osaka and okinawa, and their antibodies were examined by neutralization tests against dengue and japanese encephalitis viruses. of 60 serum samples each from osaka and okinawa, 11 and 15 sera, respectively, showed positive titers against one or more dengue serotypes. these results confirm t ... | 1983 | 6378175 |
| studies on serological cross-reaction in sequential flavivirus infections. | acute- and convalescent-phase sera from patients with dengue (den) hemorrhagic fever (dhf) and japanese encephalitis (je) that contained pre-existing flavivirus antibodies were tested for cross-reacting antibodies to den, je and yellow fever (yf) viruses by a neutralization (n) test. a fourfold or greater rise in n antibody titer in the convalescent-phase was considered significant. of 39 dhf cases, obtained at chiang mai university hospital, thailand, 15 (38.5%) showed a rise in den antibody ti ... | 1994 | 7723688 |
| serologic and virologic studies of an imported dengue case occurring in 2014 in okinawa, japan. | after returning from bali, indonesia, in february 2014, a 72-year-old man was hospitalized in okinawa owing to a high fever and rash. dengue was clinically suspected, and the patient tested positive for igm against dengue using a commercial kit. serologically, the patient showed secondary seroreactivity. significant increases in neutralization titers (n-titers) against all 4 serotypes of dengue virus (denv) and japanese encephalitis virus (jev) strains were recognized in convalescent-phase sera ... | 2016 | 26073738 |