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| Registros recuperados: 102 | |
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| Oliveira,Luiz Carlos Marques de; Comácio,Samantha Martins; Santos,Júlia de Fátima Gonçalves. |
| BACKGROUND: Patients with chronic liver disease have a higher risk of fulminant hepatitis when infected with hepatitis A virus, and vaccination of these patients against such infection is recommended. In Brazil, mainly in the South and Southeast regions, the epidemiology of hepatitis A (HA) has shifted from high to intermediate endemicity, which would have implication on policy of HA vaccination for these populations. OBJECTIVE: To verify the prevalence of HA immunity in adult patients with liver cirrhosis (LC), in Uberlândia MG, a city of Southeastern Brazil. METHODS: Between December 2005 and December 2006, 106 patients with LC were consecutively evaluated. In addition, 75 individuals without LC or alcoholism were evaluated (control group - CG). RESULTS:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatitis A vaccines; Hepatitis A virus; Liver cirrhosis; Prevalence. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000300015 |
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| Rodrigues,Maria N.; Queiroz,Dulciene M. M.; Rodrigues,Rodrigo T.; Rocha,Andreia M.C.; Braga Neto,Manuel B.; Braga,Lucia L.B.C.. |
| We investigated the prevalence and the risk factors for infection with Helicobacter pylori in a randomly-selected population of adults from a low-income community in Northeastern Brazil. Helicobacter pylori infection was determined by ELISA. Risk factors were assessed using a structured interview. Two hundred and four individuals were included in the study, including 49 males and 155 females, ranging from 18 to 80 years old. Overall, 165 of 204 participants (80%) were H. pylori positive, without significant gender differences (p= 0.49). The infection rate was of 84.7% in subjects 18 to 30 years of age, increasing to 92% in subjects 46-60 years old. Above 60 years old, the prevalence decreased slightly. As a whole, the prevalence of infection did not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Helicobacter pylori; Prevalence; Risk factors; Northeastern Brazil. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000500008 |
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| Lopes-Mori,Fabiana Maria Ruiz; Mitsuka-Breganó,Regina; Bittencourt,Laura Helena França de Barros; Dias,Renata Cristina Ferreira; Gonçalves,Daniela Dib; Capobiango,Jaqueline Dario; Reiche,Edna Maria Vissoci; Morimoto,Helena Kaminami; Freire,Roberta Lemos; Navarro,Italmar Teodorico. |
| 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 and IgM antibodies was performed by chemiluminescence test. Seropositivity for anti-T. gondii IgG was observed in 1151 (51.7%) pregnant women, 29 of which (1.3%) presented IgM reagent with IgG of high avidity. The variables associated with the presence of IgG were residency in the rural area, more than one pregnancy, less than or equal to eight years schooling, low per capita income, age group, raw or... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seroepidemiology; Prevalence; Toxoplasmosis; Pregnancy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000400004 |
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| Travassos,Ana Gabriela Álvares; Brites,Carlos; Netto,Eduardo M.; Fernandes,Sheyla de Almeida; Rutherford,George W.; Queiroz,Conceição Maria. |
| This study aimed to evaluate the prevalence of sexually transmitted infections (STIs) and associated risk factors in HIV-infected pregnant women followed for prenatal care in Salvador, Bahia. This was a cross-sectional study of 63 women seeking prenatal care at a reference center. Participants were interviewed regarding socio-epidemiological and clinical history, and were tested for HBsAg, anti-HCV, anti HTLV I/II, VDRL, Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma hominis, Ureaplasma urealyticum, CD4 count, and HIV plasma viral load. The main outcome variable was the presence of any STI. The mean age of patients was 28.2 years (16-40 years). 23 (36.5%) were diagnosed with at least one STI. The frequency of diagnoses was: HBV, 3.2%; HCV, 8.1%;... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: HIV; Sexually transmitted infections; Pregnancy; Prevalence. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000600014 |
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| Rodríguez,Islay; Fernández,Carmen; Sánchez,Lizet; Martínez,Bárbara; Siegrist,Hans H.; Lienhard,Reto. |
| Lyme disease has not been officially reported in Cuba. However, clinical cases have been serologically reported. Seroprevalence survey of Borrelia burgdorferi sensu stricto antibodies in humans in the country has not been conducted. OBJECTIVE: To estimate the prevalence of borrelial antibodies in inhabitants of a village with historically high level of tick infestation. METHODS: Serum specimens from 247 persons randomly selected from the population of the village were examined by IgG Western blot using B31 strain for estimating the prevalence of antibodies profile. RESULTS: A seroprevalence value interval (95% CI) of 0.6%-7.2% was estimated for the studied population. The prevalent borrelial protein bands on immunoblots were 41, 72, 90/93, 34, 47, 60, 58,... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Borrelia burgdorferi; Prevalence; Lyme disease; Antibodies. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000100015 |
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| Strateva,Tanya; Atanasova,Daniela; Savov,Encho; Petrova,Guergana; Mitov,Ivan. |
| Abstract Objectives To evaluate the prevalence of some virulence genes among 510 clinical Enterococcus spp. isolates and to assess the association of those genes with the species, infection site, and patient group (inpatients/outpatients). Methods Adhesins genes (aggregation substances agg and asa1 of Enterococcus faecalis and Enterococcus faecium, respectively), enterococcal surface protein (esp), endocarditis-specific antigen A (efaA), collagen-binding proteins (ace/acm)); invasins (hyaluronidase (hyl) and gelatinase (gelE)); cytotoxines (activation of cytolysin (cylA) in E. faecalis); and modulators of the host immunity and inflammation (enhanced expression pheromone (eep) in E. faecalis) were detected by polymerase chain reaction. Results The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterococcus faecalis; Enterococcus faecium; Virulence genes; Prevalence. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000200127 |
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| Toledo Jr.,Antonio C.; Greco,Dirceu B.; Felga,Marcelo; Barreira,Dráurio; Gadelha,Maria de Fátima S.; Speranza,Francisco A.B.. |
| Hepatitis B and C constitute important public health problems worldwide. In Brazil, studies on prevalence of viral hepatitis have local and regional characteristics; consequently it is difficult to define the national epidemiological situation. Our objective was to evaluate the seroprevalence of hepatitis B and C in conscripts of the Brazilian Army. A transversal study among males aged 17 to 22 years was conducted nationwide. After informed consent, each volunteer filled in a social-behavioral questionnaire and had blood drawn to test for HBsAg and anti-HCV. A total of 7,372 volunteers were evaluated in the second half of 2002. The prevalence of HBsAg was 2.6% (95% confidence interval: 2.2, 3.0) and that of anti-HCV was 1.5% (95% confidence interval: 1.2,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Viral hepatitis; Seroepidemiological studies; Cross-sectional study; Prevalence; Brazil. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000500004 |
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| Silva,Luzia Poliana Anjos da; Cavalheiro,Laura Giotto; Queirós,Fernanda; Nova,Camila Vila; Lucena,Rita. |
| Bacterial meningitis is still a major public health threat inside developing countries. In Brazil, the Department of Public Health estimates that the prevalence of bacterial meningitis is 22 cases per 100,000 persons. During the neonatal period, the bacterial meningitis develops special characteristics that can result in hearing problems and movement loss due to neurological and psychological damages. This study had the aim to analyze the prevalence of bacterial meningitis and sepsis in newborns during the pregnancy period for those using the public health care system in Salvador-Bahia. One of the goal was to describe the risk factors of bacterial meningitis and sepsis in newborns. A second goal was to identify, based on newborn health records, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Newborn meningitis; Sepsis; Prevalence; Prediction; Complications. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000200021 |
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| Freitas,Solange Zacalusni; Soares,Caroline Cordeiro; Tanaka,Tayana Serpa Ortiz; Lindenberg,Andréa Siqueira Campos; Teles,Sheila Araújo; Torres,Marina Sawada; Mello,Francisco Campello Amaral; Mendes-Corrêa,Maria Cássia; Savassi-Ribas,Flávia; Motta-Castro,Ana Rita Coimbra. |
| Objectives:A cross-sectional study on prevalence of HBV and HDV infection, risk factors and genotype distribution of HBV infection was conducted among 848 HIV-infected patients in Mato Grosso do Sul, Central Brazil.Methods:Serum samples of 848 participants were tested for hepatitis B surface antigen (HBsAg), hepatitis B core antibody (anti-HBc) and hepatitis surface antibody (anti-HBs). HBsAg positive samples were tested for anti-HBc IgM, HBeAg, anti-HBe, anti-HCV, and total anti-HDV. HBsAg and anti-HBc positive were subjected to DNA extraction. Viral DNA was amplified by semi-nested PCR for the regions pre-S/S and then purified and genotyped/subgenotyped by direct sequencing. Student's t-test, chi-square test and Fisher's exact test were used to compare... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coinfection; HBV; HIV; Prevalence. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000500473 |
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| Andrade,Andreia Alves de; Silva,Ágabo Macêdo da Costa e; Carneiro,Megmar Aparecida dos Santos; Teles,Sheila Araújo; Martins,Regina Maria Bringel. |
| Abstract To assess the prevalence of hepatitis C virus infection among men who have sex with men (MSM) in Central Brazil, a cross-sectional study was conducted in the City of Goiânia, Central Brazil, using Respondent-Driven Sampling (RDS). All serum samples were tested for anti-HCV and also for alanine aminotransferase (ALT). Anti-HCV positive samples and/or those with elevated ALT were tested for HCV RNA and genotyped. Of the 522 participants, four were found to be anti-HCV positive, and one was also HCV RNA positive (active HCV infection). Elevated ALT was found in 14 individuals. Of these, one showed evidence of acute HCV infection (HCV RNA positive and anti-HCV negative). Therefore, five MSM were positive for either anti-HCV and/or HCV RNA, giving a... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Hepatitis C virus; Men who have sex with men; Prevalence; Brazil. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000400271 |
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| Pimentel,Analíria Moraes; Baptista,Paulo Neves; Ximenes,Ricardo Arraes de Alencar; Rodrigues,Laura Cunha; Magalhães,Vera; Silva,Andrea Rosane Sousa; Souza,Nadjla Ferreira; Matos,Deize Gomes Cavalcanti de; Pessoa,Ana Kelly Lins. |
| Objective:This study was aimed to evaluate the prevalence of pertussis in adolescents and adults with cough lasting more than 14 days and less than 30 days.Methods:This is a prospective observational study in interepidemic period of pertusis. Ten public health outpatient clinics in the city of Recife, Brazil, were randomly selected for the study. The study population consisted of individuals aged 10 years and over with cough that had lasted between 14 and 30 days. Nasopharyngeal swabs were collected for culture and PCR in order to identify Bordetella pertussis. We adopted the Centers for Disease Control and Prevention in the US (CDC) definition of cases of pertussis.Results:A total of 192 individuals were identified as suspected cases. Their mean age was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pertussis (whooping cough); Prolonged cough; Adolescents and adults; Prevalence. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000100043 |
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| Moraes,Tatiane Cinquini; Fiaccadori,Fabíola Souza; Souza,Menira; Almeida,Tâmera Nunes Vieira; Cunha,Marielton dos Passos; Castro,Ítalo de Araújo; Cardoso,Divina das Dôres de Paula. |
| ABSTRACT OBJECTIVES: The main objective was to evaluate HBV infection and occult HBV infection (OBI) cases in mentally ill patients based on serological and molecular profiles. MATERIAL AND METHODS: Serum samples of 333 long-stay mentally ill patients were tested for the prevalence of HBV markers by serological (ELISA) and molecular (PCR) assays. The PCR products were sequenced to determine viral genotypes. RESULTS: It was observed a global prevalence of 12.9% (43/333) for HBV infection markers, considering HBsAg and/or anti-HBc positivity. Fourteen samples tested positive for anti-HBs alone. All samples positive (n= 57) for any HBV serological markers were tested for HBV-DNA and six were positive: HBsAg/anti-HBc (n = 1), anti-HBc/anti-HBs (n = 1),... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Hepatitis B virus; Occult infection; Prevalence; Mental illness. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000600643 |
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| Sampaio,Barbara Carvalho Fialho; Rodrigues,Jaqueline Polizeli; Meireles,Luciana Regina; Andrade Junior,Heitor Franco de. |
| ABSTRACT Introduction: Vaccines are well-established public health interventions with major impacton the prevalence of infectious diseases, but outbreaks are occurring frequently due to pri-mary and secondary failures, despite high coverage. Surveillance of efficacy and duration ofinduced immunity is a difficult task as it requires invasive blood sampling in children andteenagers. Saliva can be an acceptable alternative source of IgG to assess vaccine efficacyand toxoplasmosis incidence. We investigated IgG response for measles, mumps, rubella,and T. gondii in saliva samples of vaccinated young people. Methods: Saliva was collected from 249 public schools students from São Paulo, Brazil, aged7 to 13 years old, during an interactive exhibition on hygiene.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vaccine; Prevalence; Non-invasive; Saliva; IgG; Toxoplasmosis. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100051 |
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| Baloch,Z.; Yuan,T.; Yindi,S.; Feng,Y.; Tai,W.; Liu,Y.; Liu,L.; Zhang,A.; Wang,B.; Wu,X.; Xia,X.. |
| This study was designed to investigate and compare the HPV prevalence, genotypes distribution and associated risk factors in rural and urban women living in Xishuang Banna district, in the province of Yunnan. A total of 177 and 190 women from rural and urban areas were engaged, respectively. HPV DNA was amplified using the L1 consensus primers system (MY09/11 and GP5/6) and HPV GenoArray test was conducted for genotyping. Proportions were compared by chi-square test, and logistic regression was used to evaluate risk factors. A total of 54 women were positive for HPV DNA. Among rural women, 23 women were positive for HPV infection, of which 21 showed a single infection and 2 had a multiple infection. HPV-16 (10/23) was the most prevalent genotype followed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xishuang Banna; Prevalence; Genotype; Oncogenic; Rural; Urban. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000600708 |
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| Pileggi,V.N.; Monteiro,J.P.; Margutti,A.V.B.; Camelo Jr.,J.S.. |
| Malnutrition constitutes a major public health concern worldwide and serves as an indicator of hospitalized patients’ prognosis. Although various methods with which to conduct nutritional assessments exist, large hospitals seldom employ them to diagnose malnutrition. The aim of this study was to understand the prevalence of child malnutrition at the University Hospital of the Ribeirão Preto Medical School, University of São, Brazil. A cross-sectional descriptive study was conducted to compare the nutritional status of 292 hospitalized children with that of a healthy control group (n=234). Information regarding patients’ weight, height, and bioelectrical impedance (i.e., bioelectrical impedance vector analysis) was obtained, and the phase angle was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Child malnutrition; Prevalence; Bioelectrical impedance. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000300705 |
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| Registros recuperados: 102 | |
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