Antibodies Avidity
Mostrando 1-12 de 154 artigos, teses e dissertações.
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1. Frequency and factors associated with Toxoplasma gondii infection in pregnant women and their pets in Ilhéus, Bahia, Brazil
Abstract INTRODUCTION: Toxoplasmosis is an asymptomatic disease that can lead to systemic disease in the fetus of pregnant women with primary infection. This study aimed to determine the prevalence of toxoplasmosis, associated factors, and correlation between the serology of pregnant women and their pets, in the municipality of Ilhéus, Bahia, Brazil. MET
Rev. Soc. Bras. Med. Trop.. Publicado em: 02/12/2019
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2. DETECTION OF HUMAN ANTI-ZIKA VIRUS IgG BY ELISA USING AN ANTIGEN FROM in vitro INFECTED VERO CELLS: PRELIMINARY RESULTS
SUMMARY Zika virus (ZKV) infection is a huge public health problem in Brazil because of the increased incidence of microcephaly in neonates from infected mothers. Detection of specific IgG antibodies in maternal serum samples constitutes an important approach for diagnosing ZKV infection and evaluating its relationship with neonatal microcephaly. However, as
Rev. Inst. Med. trop. S. Paulo. Publicado em: 08/12/2016
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3. Passive acquisition of anti-Staphylococcus aureus antibodies by newborns via transplacental transfer and breastfeeding, regardless of maternal colonization
OBJECTIVE: To investigate the transmission of anti-Staphylococcus aureus (Sa) IgG, IgG1 and IgG2 via placental transfer and the transfer of IgA via the colostrum according to maternal Sa carrier status at delivery. METHODS: We evaluated anti-Sa IgG, IgG1 and IgG2 in maternal and cord sera and IgA in colostrum from a case (n=49, Sa+) and a control group (n=
Clinics. Publicado em: 2016-12
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4. Seroepidemiological analysis of toxoplasmosis in college students
Background Toxoplasmosis is a zoonosis caused by an obligate intracellular parasite, Toxoplasma gondii, which affects warm-blooded animals including humans. Its prevalence rates usually vary in different regions of the planet. Methods In this study, an analysis of the seroprevalence of toxoplasmosis among Brazilian students was proposed by means of IgG spec
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 03/03/2015
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5. Gestational toxoplasmosis in Paraná State, Brazil: prevalence of IgG antibodies and associated risk factors
The aim of the present study was to verify the association between seropositivity for IgG anti-Toxoplasma gondii antibodies and social, economic and environmental variables of pregnant women attending the public health centers of Paraná, Brazil. From January 2007 to July 2010, 2226 pregnant women were interviewed and detection of anti-T. gondii specific IgG
Braz J Infect Dis. Publicado em: 2013-08
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6. Prevalence and risk factors for Toxoplasma gondii infection among pregnant and postpartum women attended at public healthcare facilities in the City of Niterói, State of Rio de Janeiro, Brazil
IntroductionTo determine the prevalence of immunoglobulin G (IgG) and immunoglobulin M (IgM) anti-Toxoplasma gondii antibodies among pregnant and postpartum women attended within the public healthcare system in Niterói, State of Rio de Janeiro, and to detect possible exposure factors associated with T. gondii infection in this population.MethodsIgM and IgG
Rev. Soc. Bras. Med. Trop.. Publicado em: 02/04/2013
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7. Avidity in toxoplasmosis: standardization of pH as chaotrope for low avidity antibodies direct quantification / Avidez de IgG na Toxoplasmose: padronização do pH como caotrópico para quantificação direta de anticorpos de baixa avidez
A toxoplasmose é uma protozoose altamente prevalente que atinge pelo menos um bilhão de indivíduos no mundo. A infecção causada pelo Toxoplasma gondii é benigna e assintomática, mas pode causar perdas visuais ou morte em fetos e pacientes imunossuprimidos. Isto pode ser controlado com diagnóstico e instituição de tratamento, mas depende da determin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/07/2011
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8. Detection of human herpesvirus 7 infection in young children presenting with exanthema subitum
In this study, we assessed the prevalence of human herpesvirus-7 (HHV-7) in 141 serum samples from children less than four years of age with exanthematic disease. All samples were negative for measles, rubella, dengue fever and parvovirus B19 infection. Testing for the presence of human herpesvirus-6 (HHV-6)-specific high avidity IgG antibodies by indirect i
Mem. Inst. Oswaldo Cruz. Publicado em: 2011-05
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9. Congenital toxoplasmosis transmitted by human immunodeficiency-virus infected women
We report the occurrence of congenital toxoplasmosis in three infants born to HIV infected women who had high anti-toxoplasma IgG and negative IgM during pregnancy. We briefly reviewed available literature and discussed the possible transmission mechanisms of congenital toxoplasmosis among HIV infected pregnant women. Serum samples were tested for Toxoplasma
Brazilian Journal of Infectious Diseases. Publicado em: 2010-04
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10. Ocorrência da infecção por Toxoplasma gondii e avaliação da imunização em caprinos do sertão do cabugi, Rio Grande do Norte
Toxoplasmosis is one zoonosis caused by Toxoplasma gondii protozoan. Goats, amongst the production animals, are one of the species most susceptible to this parasite, being one them main involved agents in ovine and goat abortions, determining great economic losses and implications for public health, since the presence it parasite in the products of goat orig
Publicado em: 2010
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11. Anticorpos IgG total, IgG1 e IgG3 anti-VRS em crianças ≤5 anos de idade: ocorrência, nível e avidez
O vírus respiratório sincicial (VRS) é referido como o principal agente responsável por doença respiratória aguda (DRA) em recém-nascidos e lactentes, causando principalmente bronquiolite e pneumonia. Desde a década de 1960, aspectos da resposta imune contra esse vírus vêm sendo intensamente estudados, entretanto, características que podem levar �
Publicado em: 2010
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12. Pattern of functional antibody activity against Haemophilus influenzae type b (Hib) in infants immunized with diphtheria-tetanus-pertussis/Hib Brazilian combination vaccine
We evaluated the functional activity of Haemophilus influenzae B (Hib) antibodies elicited in a group of infants immunized with the diphtheria-tetanus-pertussis vaccine combined with an Hib vaccine produced totally in Brazil after technological transfer of Hib vaccine production from Glaxo SmithKline, Belgium. Blood samples from immunized infants (N = 985) w
Brazilian Journal of Medical and Biological Research. Publicado em: 06/11/2009