ABSTRACT
To date, nothing is known about the genetic diversity of the Echinococcus neotropical species, Echinococcus vogeli and Echinococcus oligarthrus. Here we used mitochondrial and nuclear DNA sequence polymorphisms to uncover the genetic structure, transmission and history of E. vogeli in the Brazilian Amazon, based on a sample of 38 isolates obtained from human and wild animal hosts. We confirm that the parasite is partially synanthropic and show that its populations are diverse. Furthermore, significant geographical structuring is found, with western and eastern populations being genetically divergent.
Subject(s)
DNA, Mitochondrial/genetics , Echinococcus/classification , Echinococcus/genetics , Polymorphism, Genetic , Animals , Biological Evolution , Brazil/epidemiology , Demography , Echinococcosis/epidemiology , Echinococcosis/parasitology , Echinococcosis/veterinary , HumansABSTRACT
Este trabalho relata um padräo sorológico näo usual para o HBV e a presença de imunocomplexos HBsAg/anti-HBs em amostras de soro provenientes de dois pacientes com hepatite fulminante procedentes da Amazônia Ocidental Brasileira. O diagnóstico foi estabelecido por meio de testes sorológicos e pela demonstraçäo de complexos antígeno/anticorpo por técnicas de microscopia eletrônica de transmissäo. A concomitante superinfecçäo pelo vírus da hepatite Delta também é discutida
