| [presence of antibodies against venezuelan equine encephalitis virus subtype vi in patients with acute febrile illness]. | in argentina, there is no record of human cases produced by dengue virus (flavivirus), but paraguay and brasil (neighbouring countries) have notified human outbreaks of dengue haemorrhagic fever. in this report, we inform the serological results of a limited human outbreak of a dengue-like acute illness that occurred in general belgrano island, formosa, argentina in april 1989. this island is 35 km far from clorinda city of paraguay river, with a human population of 150 inhabitants. the weather ... | 1993 | 8153352 |