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Molecular screening of the human parvoviruses B19 and bocavirus 1 in the study of congenital diseases as applied to symptomatic pregnant women and children.

ABSTRACT: Introduction:B19 virus (B19V) and bocavirus 1 (HBoV1) are human pathogenic parvoviruses that are prevalent worldwide and are responsible for a diverse and not yet fully established spectrum of clinical manifestations. Objective:To screen B19V and HBoV1 in patients with clinical manifestations associated with acquisition of the infection during gestation. Methods:A retrospective, observational study was performed that included serum samples from patients without a previous known aetiology. B19V and HBoV1 were determined by end-point PCR. Positive samples were genotyped. Results:A total of 106 serum samples were analysed, 61 from pregnant women and 45 from neonates and paediatric patients. None were positive for HBoV1, while B19V was detected in 37/106 [34.9?%, 95?%?confidence interval (CI): 26.5-44.4] of the samples studied. In the group of pregnant women, 28/61 (45.9?%, 95?%?CI: 34.0-58.3) were B19V-positive, and 2 of them had foetal anaemia followed by hydrops and foetal death, 3 were associated with a history of recurrent pregnancy loss and there was 1 case of spontaneous abortion. B19V was also detected in cases of maternal febrile exanthema, polyhydramnios, oligohydramnios and foetal ascites. In the group of children, 9/45 (20.0?%, 95?%?CI: 10.9-33.8) neonatal patients were B19V-positive, and this was associated with foetal hydrops, TORCH syndrome and cardiac alterations. The nucleotide sequences analysed confirmed the identity of B19V genotype 1. Conclusions:We found no evidence to indicate the presence of HBoV1 in maternal blood or in the newborns/paediatric patients (hence providing no support for the supposed vertical transmission). On the other hand, the high frequency of B19V in the pathologies studied indicates the importance of molecular diagnosis in both the mother and the child. Future efforts should contribute to early detection and characterization of infections.

SUBMITTER: Salbetti MB

PROVIDER: S-EPMC7470285 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Molecular screening of the human parvoviruses B19 and bocavirus 1 in the study of congenital diseases as applied to symptomatic pregnant women and children.

Salbetti Maria Belen MB Pedranti Mauro Sebastian MS Barbero Paula P Molisani Paula P Lazzari Martina M Olivera Nicolas N Isa Maria Beatriz MB Bertoldi Ariel A Moreno Laura L Adamo Maria Pilar MP

Access microbiology 20190620 5

<h4>Introduction</h4>B19 virus (B19V) and bocavirus 1 (HBoV1) are human pathogenic parvoviruses that are prevalent worldwide and are responsible for a diverse and not yet fully established spectrum of clinical manifestations.<h4>Objective</h4>To screen B19V and HBoV1 in patients with clinical manifestations associated with acquisition of the infection during gestation.<h4>Methods</h4>A retrospective, observational study was performed that included serum samples from patients without a previous k ...[more]

PMID: 32974527

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Project description:Background:Urinary tract infection is a common cause of morbidity in pregnant women. Emergence of antimicrobial resistance particularly ESBL production among bacterial uropathogens is increasing and becoming principal cause of treatment failure. The aim of this study was to determine the bacterial profile, their antimicrobial susceptibility patterns, risk factors and identify ESBL-producing bacterial uropathogens. Patients and Methods:A hospital-based cross-sectional study was conducted in the Northeastern Ethiopia region. A total of 323 pregnant women were included and structured questionnaire was used to collect sociodemographic and risk factor-related data. About 10mL freshly voided midstream urine specimen was collected, transported and processed according to standard operating procedures. The data obtained were entered into SPSS version 22 and descriptive statistics, chi-square, bivariate and multivariate logistic regression analyses were performed. P-value ?0.05 with corresponding 95% confidence interval were considered for statistical significance. Results:The overall prevalence of UTI was 15.5% (50/323). The predominant bacterial isolates were Escherichia coli 17 (33.3%) followed by coagulase-negative staphylococci 15 (30.0%) and Staphylococcus aureus 14 (27.5%). Previous history of UTI (AOR=8.824, 95% CI: 3.769,20.654, P<0.001) and history of catheterization (AOR=3.270, 95% CI: 1.316,8.122, P=0.011) were significantly associated with the occurrence of bacterial UTI. Gram-negative isolates showed high level of resistance to ampicillin 12 (60.0%) and relatively low level of resistance to nitrofurantoin 5(25.0%), norfloxacin 5 (25.0%) and ceftazidime 3 (15.0%). Gram-positive uropathogens showed higher resistance for penicillin 29 (93.5%) and trimethoprim-sulfamethoxazole 23 (79.3%) whereas all isolates were sensitive 29 (100.0%) to nitrofurantoin. Moreover, multidrug resistance was observed among 41 (80.4%) of the isolates, and 3 (15.8%) of isolated gram-negative bacteria were ESBL producers. Conclusion:High prevalence of bacterial UTI and MDR for commonly prescribed drugs were observed with significant number of ESBL producers. Therefore, instant UTI culture assessment of pregnant women, especially those having possible risk factors such as previous histories of UTI and catheterization; moreover, appropriate prescription and use of antibiotics are necessary.

Project description:ObjectiveTo estimate nationwide trends in the prevalence of maternal congenital heart disease (CHD) and determine whether women with CHD are more likely than women without maternal CHD to have medical and obstetric complications.MethodsThe 2000-2010 Nationwide Inpatient Sample was queried for International Classification of Diseases, 9th Revision, Clinical Modification codes to identify delivery hospitalizations of women with and without CHD. Trends in the prevalence of CHD were determined and then rates of complications were reported for CHD per 10,000 delivery hospitalizations. For Nationwide Inpatient Sample 2008-2010, logistic regression was used to examine associations between CHD and complications.ResultsFrom 2000 to 2010, there was a significant linear increase in the prevalence of CHD from 6.4 to 9.0 per 10,000 delivery hospitalizations (P<.001). Multivariable logistic regression demonstrated that all selected medical complications, including mortality (17.8 compared with 0.7/10,000 deliveries, adjusted odds ratio [OR] 22.10, 95% confidence interval [CI] 13.96-34.97), mechanical ventilation (91.9 compared with 6.9/10,000, adjusted OR 9.94, 95% CI 7.99-12.37), and a composite cardiovascular outcome (614 compared with 34.3/10,000, adjusted OR 10.54, 95% CI 9.55-11.64) were more likely to occur among delivery hospitalizations with maternal CHD than without. Obstetric complications were also common among women with CHD. Delivery hospitalizations with maternal CHD that also included codes for pulmonary circulatory disorders had higher rates of medical complications compared with hospitalizations with maternal CHD without pulmonary circulatory disorders.ConclusionThe number of delivery hospitalizations with maternal CHD in the United States is increasing, and although we were not able to determine whether correction of the cardiac lesion affected outcomes, these hospitalizations have a high burden of medical and obstetric complications.Level of evidenceII.

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Dataset Information

Molecular screening of the human parvoviruses B19 and bocavirus 1 in the study of congenital diseases as applied to symptomatic pregnant women and children.

Publications

Molecular screening of the human parvoviruses B19 and bocavirus 1 in the study of congenital diseases as applied to symptomatic pregnant women and children.

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