Results: 56

Streptococcus agalactiae - Distribuição sorotípica e relação com fatores de virulência e resistência antimicrobiana

Streptococcus agalactiae, ou Estreptococo do Grupo B, é um microrganismo que encontrado na microbiota intestinal, vaginal e/ou geniturinária de 10-30% de mulheres saudáveis. A principal infecção causada por S. agalactiae é a sepse neonatal. O bebê pode adquirir o microrganismo durante o parto ao p...

Phylogenetic analysis of Dengue-2 serotypes circulating in mangroves in Northern Cordoba, Colombia

Abstract INTRODUCTION: In this study, we aimed to identify DENV-2 subtypes in Aedes aegypti pools collected between 2011 and 2017 in a rural area of Northern Cordoba, Colombia ("La Balsa"). METHODS: RT-PCR was performed to analyze the capsid/pre-membrane region (C-PrM). Sequencing and phylogenetic bay...

Occurrence of serological reactions for serogroup Sejroe (CTG and Prajtino) in female buffalo in the state of Pernambuco, Brazil

Braz. j. microbiol; 49 (4), 2018
ABSTRACT The objective of this study was to evaluate the occurrence of anti-Leptospira spp. antibodies in female buffalo in the state of Pernambuco. A total of 123 female buffalo blood samples were collected from five properties distributed in the state of Pernambuco. The microscopic agglutination test w...

Increasing prevalence and dissemination of invasive nontyphoidal Salmonella serotype Typhimurium with multidrug resistance in hospitalized patients from southern Brazil

Braz. j. infect. dis; 22 (5), 2018
ABSTRACT Introduction: Nontyphoidal Salmonella serotypes are the main cause of human food-borne infection, including several hospitalization cases in the developing countries. Aim: To detect the main serotypes and to characterize the antibiotic resistance of human non-enteric and enteric nontyphoidal S...

Differences in the replicative capacities of clinical isolates of dengue virus in C6/36 cells and in urban populations of Aedes aegypti from Colombia, South America

Braz. j. infect. dis; 22 (4), 2018
ABSTRACT Dengue, the most prevalent arboviral disease worldwide, is caused by any of the four dengue virus (DENV) serotypes that co-circulate constantly in hyperendemic areas such as Medellin (Colombia), and these serotypes are transmitted by mosquitoes of the genus Aedes. In this study, we evaluated the...

Viremia en plasma como factor asociado a gravedad en la infección por el virus del dengue: revisión sistemática de la literatura

Rev. chil. infectol; 35 (2), 2018
Resumen Introducción: La viremia plasmática es un factor cuyo rol en la gravedad de la infección por el virus del dengue se ha discutido ampliamente en los últimos años, siendo hallados resultados divergentes en los múltiples contextos evaluados. Métodos: Se realizó una revisión sistemática d...

Streptococcus pneumoniae: distribution of serotypes and antimicrobial susceptibility in patients with cáncer

Salud pública Méx; 60 (1), 2018
Abstract: Objective: To describe the distribution of pneumococcal serotypes causing infectious diseases in patients with hematological malignancies and solid tumors and their antimicrobial susceptibility before and after introduction of pneumococcal conjugate vaccine (PCV7) in Mexico. Materials and me...

Biofilm formation capacity of Salmonella serotypes at different temperature conditions

Pesqui. vet. bras; 38 (1), 2018
Salmonella spp. are one of the most important agents of foodborne disease in several countries, including Brazil. Poultry-derived products are the most common food products, including meat and eggs, involved in outbreaks of human salmonellosis. Salmonella has the capacity to form biofilms on both biotic ...

Imported case of Dengue virus 3 genotype I in Rio de Janeiro state, Brazil

Mem. Inst. Oswaldo Cruz; 113 (8), 2018
The dengue virus (DENV), of the genus Flavivirus (Flaviviridae), has four antigenically distinct serotypes, of which DENV-3 is classified into five genotypes. Here, we describe the detection of DENV-3 genotype I in sera of a Brazilian patient travelling from Singapore to Rio de Janeiro, Brazil, by using ...