22 documents found, page 1 of 3
Upregulation of intercellular adhesion molecule-1 and vascular cell adhesion mo...
Vitoria,Webster Oliveira; Thomé,Letícia Silva; Kanashiro-Galo,Luciane; Carvalho,Leda Viegas de; Penny,Ricardo; Santos,Washington Luis ConradoAbstract INTRODUCTION: Dengue is an important mosquito-borne disease in tropical and subtropical regions. Adhesion molecules have not been systematically characterized in the renal tissue of patients with severe dengue (SD). The objective of this study was to detect viral antigens in samples from patients that evolved with SD, correlating with the expression of ICAM-1, VCAM-1, VE-cadherin, and E-selectin to con...
Encephalitis associated with Zika virus infection and reactivation of the varic...
Vieira,Marcelo Adriano da Cunha e Silva; Castro,Alzira Almeida de Sousa; Henriques,Daniele Freitas; Silva,Eliana Vieira Pinto da; Tavares,Fernando NetoAbstract We report a case of encephalitis associated with Zika virus infection and reactivation of varicella-zoster virus in the central nervous system of a Brazilian child. This case raises the possibility that reactivation of the latent varicella-zoster virus may be a mechanism of neurological impairment induced by acquired Zika virus infection.
Prevalence of antibodies to equine alphaviruses in the State of Pará, Brazil
Casseb,Alexandre do Rosário; Brito,Thais Costa; Silva,Maria Rogéria Menezes da; Chiang,Jannifer Oliveira; Martins,Lívia Caricio; Silva,Sandro Patroca daABSTRACT: The State of Pará comprises 26% of Brazilian Amazon region, where a large diversity of arboviruses has been described. This study sought to assess the prevalence and distribution of hemagglutination inhibition (HI) antibodies against antigens of four alphaviruses (Togaviridae: Alphavirus ) from the species: Eastern equine encephalitis (EEEV), Western equine encephalitis (WEEV), Mayaro virus (MAYV), an...
Frequency of histopathological changes in Howler monkeys ( Alouatta sp.) natura...
Leal,Silvana Gomes; Romano,Alessandro Pecego Martins; Monteiro,Rafael Veríssimo; Melo,Cristiano Barros de; Vasconcelos,Pedro Fernando da CostaAbstract: INTRODUCTION: Due to the importance that Howler monkeys have on the yellow fever (YF) epidemiological sylvatic cycle in Brazil, more accurate morphological diagnostic criteria needs to be established, especially considering the differences that may exist between the genera of Brazilian non-human primates (NHPs) involved in yellow fever virus (YFV) epizootics. METHODS: Records of YF epizootics in NHPs ...
Chikungunya risk for Brazil
Azevedo,Raimunda do Socorro da Silva; Oliveira,Consuelo Silva; Vasconcelos,Pedro Fernando da CostaThis study aimed to show, based on the literature on the subject, the potential for dispersal and establishment of the chikungunya virus in Brazil. The chikungunya virus, a Togaviridae member of the genusAlphavirus, reached the Americas in 2013 and, the following year, more than a million cases were reported. In Brazil, indigenous transmission was registered in Amapa and Bahia States, even during the period of ...
Serologic assessment of yellow fever immunity in the rural population of a yell...
Machado,Vanessa Wolff; Vasconcelos,Pedro Fernando da Costa; Silva,Eliana Vieira Pinto; Santos,João BarberinoIntroductionThe yellow fever epidemic that occurred in 1972/73 in Central Brazil surprised the majority of the population unprotected. A clinical-epidemiological survey conducted at that time in the rural area of 19 municipalities found that the highest (13.8%) number of disease cases were present in the municipality of Luziânia, State of Goiás.MethodsThirty-eight years later, a new seroepidemiological survey w...
Detection of arboviruses of public health interest in free-living New World pri...
Batista,Paulo Mira; Andreotti,Renato; Almeida,Paulo Silva de; Marques,Alisson Cordeiro; Rodrigues,Sueli Guerreiro; Chiang,Jannifer OliveiraIntroduction A sero-epidemiological survey was undertaken to detect the circulation of arboviruses in free-living non-human primates. Methods Blood samples were obtained from 16 non-human primates (13 Sapajus spp. and three Alouatta caraya) that were captured using terrestrial traps and anesthetic darts in woodland regions in the municipalities of Campo Grande, Aquidauana, Jardim, Miranda and Corumbá in the Sta...
Chikungunya virus infection: report of the first case diagnosed in Rio de Janei...
Albuquerque,Isabella Gomes Cavalcanti de; Marandino,Renato; Mendonça,Aline Pimentel; Nogueira,Rita Maria Ribeiro; Vasconcelos,Pedro Fernando da CostaInitially diagnosed in Africa and Asia, the Chikungunya virus has been detected in the last three years in the Caribbean, Italy, France, and the United States of America. Herein, we report the first case for Rio de Janeiro, Brazil, in 2010.
Seroepidemiological monitoring in sentinel animals and vectors as part of arbov...
Batista,Paulo Mira; Andreotti,Renato; Chiang,Jannifer Oliveira; Ferreira,Milene Silveira; Vasconcelos,Pedro Fernando da CostaINTRODUCTION: From February-September 2010, seroepidemiological surveys were conducted on non-human primates and transmitter vector capture was used to investigate the possible circulation of arboviruses in the municipalities of Bonito, Campo Grande, and Jardim, State of Mato Grosso do Sul, Brazil. METHODS: A total of 65 primates from the wild and captivity were used, and potential vectors were captured using C...
Yellow fever in Brazil: thoughts and hypotheses on the emergence in previously ...
Vasconcelos,Pedro Fernando da CostaThis article describes and discusses factors associated to the reemergence of yellow fever and its transmission dynamics in the states of São Paulo (Southeastern Brazil) and Rio Grande do Sul (Southern) during 2008 and 2009. The following factors have played a pivotal role for the reemergence of yellow fever in these areas: large susceptible human population; high prevalence of vectors and primary hosts (non-hu...