Results: 91

Prevalencia de dengue y leptospirosis en pacientes febriles en un hospital general de especialidades, México

Rev. chil. infectol; 35 (3), 2018
Resumen Entre las enfermedades infecciosas febriles se encuentran: dengue, leptospirosis, rickettsiosis y salmonelosis, entre otras. El objetivo de este estudio fue detectar la presencia de anticuerpos IgM a dengue y Leptospira en pacientes febriles. La seropositividad para IgM frente al dengue fue 34%; ...

ELISA-based assay of immunoglobulin G antibodies against mammalian cell entry 1A (Mce1A) protein: a novel diagnostic approach for leprosy

Mem. Inst. Oswaldo Cruz; 112 (12), 2017
BACKGROUND Leprosy is a chronic infectious disease caused by the obligate intracellular bacillus Mycobacterium leprae. Because leprosy diagnosis is complex and requires professional expertise, new tools and methodologies are needed to detect cases in early stages and prevent transmission. The M. leprae g...

Seroprevalence and spatial distribution dynamics of Yersinia pestis antibodies in dogs and cats from plague foci in the State of Ceará, Northeastern Brazil

Abstract INTRODUCTION: In Brazil, the plague is established in several foci located mainly in the northeastern part of the country, where it alternates between active and quiescent periods. These foci in the State of Ceará have high epidemiological importance. In addition to other plague detection act...

Serosurvey of Leptospira spp. and Toxoplasma gondii in rats captured from two zoos in Southern Brazil

Abstract INTRODUCTION: Norway rats (Rattus norvegicus) are zoonotic reservoirs for Leptospira spp. and Toxoplasma gondii, and influence diseases in urban areas. METHODS: Free-ranging and laboratory-raised rats from two zoos in southern Brazil were tested for Leptospira spp. and T. gondii using micros...

Evidence of hidden leprosy in a supposedly low endemic area of Brazil

Mem. Inst. Oswaldo Cruz; 112 (12), 2017
OBJECTIVES Show that hidden endemic leprosy exists in a municipality of inner São Paulo state (Brazil) with active surveillance actions based on clinical and immunological evaluations. METHODS The study sample was composed by people randomly selected by a dermatologist during medical care in the public...

Prevalencia de Bartonella henselae en donantes de sangre y riesgo de transmisión sanguínea en Chile

Rev. chil. infectol; 34 (6), 2017
Resumen Introducción: Bartonella henselae es el agente causal de la enfermedad del arañazo del gato en personas inmunocompetentes y de la angiomatosis bacilar y peliosis hepatis en inmunocomprometidos. En Chile la prevalencia de anticuerpos contra B. henselae en niños y adolescentes sanos es de 13,3%...

Unrecognized pediatric and adult family members of children with acute brucellosis

Braz. j. infect. dis; 21 (5), 2017
Abstract Background and aim Brucellosis is an infectious, contagious and zoonotic disease that occurs worldwide. The family members of an index case of brucellosis may be especially susceptible, due to sharing the same source of infection and similar risk factors for brucellosis. In this study, we propo...

Salivary anti-PGL-1 IgM may indicate active transmission of Mycobacterium leprae among young people under 16 years of age

Braz. j. infect. dis; 21 (5), 2017
Abstract Considering that the main route of Mycobacterium leprae transmission is the upper respiratory tract, detection of salivary antibodies can be a useful tool for diagnosing early infection. The study aimed to analyze salivary anti-PGL-1 IgA and IgM antibodies in 169 children aged 4-16 years old, wh...

Antibody persistence following meningococcal C conjugate vaccination in children and adolescents infected with human immunodeficiency virus

J. pediatr. (Rio J.); 93 (5), 2017
Abstract Objective: HIV-infected individuals (HIVI) are threatened by meningococcal infection and presented lower response to vaccines. Data are scarce on long-term persistence of human serum bactericidal antibody (hSBA) after a meningococcal C conjugate (MCC) vaccine in HIVI youth; the authors aimed to...

Analysis of colostrum IgA against bacteria involved in neonatal infections

Einstein (Säo Paulo); 15 (3), 2017
ABSTRACT Objective To describe e compare the specificity of IgA antibodies against bacteria extract of Klebsiella pneumoniae , Staphylococcus aureus , Escherichia coli , and Salmonella enteritidis . Methods Colostrum samples were aseptically collected in the first 12 hours after C-section delivery. The...