3 documents found, page 1 of 1
Dengue epidemic, serotype 2, in Araguaina, Tocantins, Brazil
Vasconcelos, Pedro Fernando da Costa; Travassos da Rosa, Elizabeth Salbé; Travassos da Rosa, Jorge Fernando Soares; Freitas, Ronaldo Barros deWe report the first outbreak of dengue fever caused by dengue 2 (DEN 2) in Araguaina, Tocantins State. Four hundred people of 74 families, living at S. João, Araguaina Sul and Neblina districts were questioned and then bled, in order to obtain sera to test for anti-dengue antibodies. If a person was sick, a small quantity of blood was collected for virus isolation. The main clinical picture of disease was chara...
Epidemiology of encephalitis by arboviruses in the Amazon region of Brazil
Vasconcelos, Pedro Fernando da Costa; Travassos da Rosa, Jorge Fernando Soares; Travassos da Rosa, Amélia Paes de Andrade; Dégallier, NicolasAn overview of ecological, epidemiological and clinical findings of potential arthropod-borne encephalitis viruses circulating in the Amazon Region of Brazil are discussed. These viruses are the Eastern Equine Encephalitis (EEE), Western Equine Encephalitis (WEE), St. Louis Encephalitis (SLE), Mucambo (MUC) and Pixuna (PIX). These last two are subtypes (HI and IV) of Venezuelan Equine Encephalitis virus. The ar...
Epidemic outbreaks of Oropouche virus in the Maranhão and Goiás States, Brazil
Vasconcelos, Pedro Fernando da Costa; Travassos da Rosa, Jorge Fernando Soares; Guerreiro, Sueli Corrêa; Dégallier, NicolasThe authors describe the occurrence of outbreaks caused by Oropouche virus (ORO) in the states of Maranhão and Goiás, Brazil in 1988. 36 strains of the virus were obtained from the intracerebral inoculation of the blood of 120 patients into 2-3 day-old infant mice. The illness was characterized by headache, fever, pain in the muscles, joints and back, photophobia, retrobulbar pain, nausea and dizziness. 128 of ...