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1.
Rev Med Virol ; 33(1): e2385, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-35986594

RESUMEN

Several phase-1 clinical trials have been performed to evaluate the safety and efficacy of candidate anti-Zika vaccines. In this systematic review, we systematically evaluated the safety and immunogenicity of candidate vaccines, which would aid researchers in formulating an effective vaccination strategy for phase-2 trials based on current evidence. A literature search was conducted using the electronic databases MEDLINE through Pubmed, Web of Science, and Cochrane Database for relevant studies on candidate anti-zika vaccines. Studies on animal models were excluded from our study. Healthy individuals who were administered candidate Zika vaccines to evaluate the immune response and adverse events (AEs) compared to placebo were considered. Data were extracted, tabulated, and analysed using Microsoft Excel, while the risk of bias plots were generated using tidyverse and Robvis packages in R-studio. A total of five phase-1 clinical trials were included in our analysis comprising of studies on inactivated, viral vector, and DNA vaccines. Immunogenicity ranged from 10% to 100% after vaccination with the lowest seroconversion rate (10%) and geometric mean titre (GMT) (6.3; 95% confidence interval (CI):3.7-10.8) observed among recipients of single-dose inactivated anti-zika vaccine (ZPIV). For DNA vaccines, the seroconversion rate ranged from 60% to 100% with the highest seroconversion rate (100%) and GMT (2871; 95% CI:705.3-11688) observed among recipients of three shots of high dose GLS-5700 vaccine. For viral vector vaccine (Ad26.ZIKV.001) seroconversion rate (100%) and GMT peaked after two shots with both low and high-dose vaccines. In all those studies AEs were mostly local including injection site pain, erythema, and itching. The most common systemic AEs included fever, myalgia, nausea, and fatigue. In phase-1 clinical trials, all candidate vaccines were found to be highly immunogenic and relatively safe, especially when administered in higher doses and with the help of needle-free devices.


Asunto(s)
Vacunas de ADN , Vacunas Virales , Infección por el Virus Zika , Virus Zika , Animales , Infección por el Virus Zika/prevención & control , Vacunas de ADN/efectos adversos , Vacunación , Anticuerpos Antivirales
2.
Cochrane Database Syst Rev ; 1: CD014573, 2024 01 10.
Artículo en Inglés | MEDLINE | ID: mdl-38197546

RESUMEN

BACKGROUND: Cholera causes acute watery diarrhoea and death if not properly treated. Outbreaks occur in areas with poor sanitation, including refugee camps. Several vaccines have been developed and tested over the last 50 years. This is an update of a Cochrane review, originally published in 1998, which explored the effects of all vaccines for preventing cholera. This review examines oral vaccines made from killed bacteria. OBJECTIVES: To assess the effectiveness and safety of the available World Health Organization (WHO)-prequalified oral killed cholera vaccines among children and adults. SEARCH METHODS: We searched the Cochrane Infectious Diseases Group Specialized Register; CENTRAL, MEDLINE; Embase; LILACS; and two trials registers (February 2023). SELECTION CRITERIA: We included randomized controlled trials (RCTs), including cluster-RCTs. There were no restrictions on the age and sex of the participants or the setting of the study. We considered any available WHO-prequalified oral killed cholera vaccine as an intervention. The control group was given a placebo, another vaccine, or no vaccine. The outcomes were related to vaccine effectiveness and safety. We included articles published in English only. DATA COLLECTION AND ANALYSIS: Two review authors independently applied the inclusion criteria and extracted data from included studies. We assessed the risk of bias using the Cochrane ROB 1 assessment tool. We used the generic inverse variance and a random-effects model meta-analysis to estimate the pooled effect of the interventions. We assessed the certainty of the evidence using the GRADE approach. For vaccine effectiveness (VE), we converted the overall risk ratio (RR) to vaccine effectiveness using the formula: VE = (1 - RR) x 100%. MAIN RESULTS: Five RCTs, reported in 12 records, with 462,754 participants, met the inclusion criteria. We identified trials on whole-cell plus recombinant vaccine (WC-rBS vaccine (Dukoral)) from Peru and trials on bivalent whole-cell vaccine (BivWC (Shanchol)) vaccine from India and Bangladesh. We did not identify any trials on other BivWC vaccines (Euvichol/Euvichol-Plus), or Hillchol. Two doses of Dukoral with or without a booster dose reduces cases of cholera at two-year follow-up in a general population of children and adults, and at five-month follow-up in an adult male population (overall VE 76%; RR 0.24, 95% confidence interval (CI) 0.08 to 0.65; 2 trials, 16,423 participants; high-certainty evidence). Two doses of Shanchol reduces cases of cholera at one-year follow-up (overall VE 37%; RR 0.63, 95% CI 0.47 to 0.85; 2 trials, 241,631 participants; high-certainty evidence), at two-year follow-up (overall VE 64%; RR 0.36, 95% CI 0.16 to 0.81; 2 trials, 168,540 participants; moderate-certainty evidence), and at five-year follow-up (overall VE 80%; RR 0.20, 95% CI 0.15 to 0.26; 1 trial, 54,519 participants; high-certainty evidence). A single dose of Shanchol reduces cases of cholera at six-month follow-up (overall VE 40%; RR 0.60, 95% CI 0.47 to 0.77; 1 trial, 204,700 participants; high-certainty evidence), and at two-year follow-up (overall VE 39%; RR 0.61, 95% CI 0.53 to 0.70; 1 trial, 204,700 participants; high-certainty evidence). A single dose of Shanchol also reduces cases of severe dehydrating cholera at six-month follow-up (overall VE 63%; RR 0.37, 95% CI 0.28 to 0.50; 1 trial, 204,700 participants; high-certainty evidence), and at two-year follow-up (overall VE 50%; RR 0.50, 95% CI 0.42 to 0.60; 1 trial, 204,700 participants; high-certainty evidence). We found no differences in the reporting of adverse events due to vaccination between the vaccine and control/placebo groups. AUTHORS' CONCLUSIONS: Two doses of Dukoral reduces cases of cholera at two-year follow-up. Two doses of Shanchol reduces cases of cholera at five-year follow-up, and a single dose of Shanchol reduces cases of cholera at two-year follow-up. Overall, the vaccines were safe and well-tolerated. We found no trials on other BivWC vaccines (Euvichol/Euvichol-Plus). However, BivWC products (Shanchol, Euvichol/Euvichol-Plus) are considered to produce comparable vibriocidal responses. Therefore, it is reasonable to apply the results from Shanchol trials to the other BivWC products (Euvichol/Euvichol-Plus).


Asunto(s)
Vacunas contra el Cólera , Cólera , Adulto , Niño , Masculino , Humanos , Cólera/prevención & control , Vacunas de Productos Inactivados/efectos adversos , Vacunación , Bangladesh , Diarrea
3.
BMC Geriatr ; 23(1): 665, 2023 10 16.
Artículo en Inglés | MEDLINE | ID: mdl-37845634

RESUMEN

BACKGROUND: Ensuring a good death is one of the primary objectives of palliative care and end-of-life care. There is insufficient evidence regarding what defines a good death for people living with dementia. Obtaining an understanding of what constitutes a good death could help improve dementia care. This study aimed to explore how multiple stakeholders perceive a good death for people living with dementia. METHODS: This qualitative study was carried out across six prefectures in Japan. Enrollment of participants took place within dementia outpatient clinics, hospitals, daycare centers, and community centers. A total of thirty-three in-depth interviews with people living with dementia, physicians, and nurses were conducted. Six focus group discussions were performed with family caregivers and care workers. Verbatim transcripts of the interviews were prepared, and inductive content analysis was used to examine the data. FINDINGS: Regarding the perception of a good death, the following themes were derived: (1) painless death; (2) dying in a preferred environment; (3) family's coping with loss; (4) maintaining regular life; (5) living with respect; and (6) preparation for death. All these themes are interrelated. Participants viewed a good death as a process rather than a single event. CONCLUSION: This study identifies crucial components of a good death for people living with dementia. The findings could be used to improve dementia care.


Asunto(s)
Demencia , Cuidado Terminal , Humanos , Demencia/terapia , Cuidado Terminal/métodos , Cuidados Paliativos , Investigación Cualitativa , Grupos Focales , Cuidadores
4.
Psychogeriatrics ; 23(3): 512-522, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36775284

RESUMEN

Aducanumab is a novel disease-modifying anti-amyloid-beta (Aß) human monoclonal antibody specifically targeted to the pathophysiology of Alzheimer's disease (AD). It was granted for treating AD in June 2021 by the United States Food and Drug Administration. We systematically analyzed available trials to evaluate the efficacy and safety of aducanumab treating AD. We followed the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines. We conducted an extensive literature search using the electronic databases MEDLINE through PubMed, EMBASE, Cochrane, Web of Science, and Scopus for suitable studies on aducanumab. We considered human clinical trials of aducanumab, assessing its efficacy and adverse effects in treating AD, excluding any experimental animal studies. We included three randomised controlled trials. Studies reported that aducanumab reduced brain amyloid-beta plaques in a time- and dose-dependent manner (dose-response, P < 0.05) and a slowed decline in cognition (22% reduction) in the high-dose treated group, difference of -0.39 versus placebo in Clinical Dementia Rating Scale Sum Boxes (95% CI, -0.69 to -0.09; P = 0.012) along with a reduced amyloid positron emission tomography standard uptake value ratio score (P < 0.001) and plasma p181-tau (phosphorylated tau) level. Amyloid-related imaging abnormality was reported as a serious adverse event and was profound in high-dose treated group (425/1029 in 10 mg/kg). Aducanumab has been reported to affect two main pathophysiologic hallmarks (Aß and tau) of AD. We suggest future studies addressing aducanumab's efficacy and safety to confirm that the benefit of this drug outweighs the risk.


Asunto(s)
Enfermedad de Alzheimer , Animales , Humanos , Enfermedad de Alzheimer/tratamiento farmacológico , Tomografía Computarizada por Rayos X , Anticuerpos Monoclonales Humanizados/efectos adversos , Péptidos beta-Amiloides
5.
BMC Health Serv Res ; 22(1): 184, 2022 Feb 12.
Artículo en Inglés | MEDLINE | ID: mdl-35151313

RESUMEN

BACKGROUND: The dementia care policy in Japan emphasizes the views of people living with dementia in care planning. An exploration of the everyday wishes of older people living with dementia can help clarify their priorities and assist in improving dementia care. This study aimed to explore the everyday wishes of older people living with dementia in Japan. METHODS: This qualitative study was conducted in Aichi prefecture in Japan. Older people with mild to moderate dementia were considered for inclusion. Participants were recruited from a dementia outpatient clinic. In-depth interviews were conducted with 36 participants in the same dementia outpatient clinic from January to October 2019. Audio-recorded interviews were transcribed verbatim. Inductive content analysis was carried out to analyze the data. FINDINGS: Participants expressed their everyday wishes within five themes (desire of being connected, freedom to decide, involvement in activities, status quo, and self-reliance). Older people living with dementia loved the connection with their family and wanted to have an enjoyable life by engaging in several activities without others' interference. They desired to maintain the status quo and not be a burden to others. CONCLUSIONS: This study provides evidence on the everyday wishes of people living with dementia. Identified wishes are mostly on emotional aspects of their daily lives. The findings of our study might help provide care for the people living with dementia considering their wishes. Further exploration, including people with severe dementia, is needed.


Asunto(s)
Demencia , Anciano , Cuidadores , Demencia/terapia , Humanos , Japón , Investigación Cualitativa
6.
BJOG ; 128(5): 798-806, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-32929868

RESUMEN

BACKGROUND: Caesarean delivery on maternal request (CDMR) is considered a significant contributor to the unprecedented increase in caesarean deliveries (CDs) for nonclinical reasons. Current literature lacks a reliable assessment of the rate of CDMR, which hinders the planning and delivery of appropriate interventions for reducing CDMR rates. OBJECTIVES: To conduct a systematic review of the literature and meta-regression to explore the global incidence of CDMR. SEARCH STRATEGY: PubMed, Embase, CINAHL, Medline, Google scholar and grey literature were searched from January 1985 to May 2019. SELECTION CRITERIA: Observational studies that report CDMR data were included. We excluded non-English articles, case notes, editorial reviews and articles reporting elective CDs from pregnancy risk factors. DATA COLLECTION AND ANALYSIS: Two reviewers independently conducted the screening and quality appraisal using a validated tool. The weighted average of CDMR over total deliveries (absolute proportion) and by total CDs (relative proportion) were generated. Quality-effects meta-regression was used to explain the variability of the CDMR estimates by moderators, including study methodology and demography of study participants. MAIN RESULTS: We identified 31 articles from 14 countries that include 5 million total births. The absolute proportion of CDMR varies between 0.2 and 42.0%, with significant variations across studies and subgroups. The economic status of the country and study year together explained 84% of the absolute and 76% of the relative proportion of CDMR variation. CONCLUSIONS: An appropriate reporting of CDMR should be a key priority in maternal health policies and practices. TWEETABLE ABSTRACT: Globally, the proportion of maternal requested caesarean delivery has mostly been influenced by the economic status of the country.


Asunto(s)
Cesárea/estadística & datos numéricos , Procedimientos Quirúrgicos Electivos/estadística & datos numéricos , Prioridad del Paciente/estadística & datos numéricos , Femenino , Salud Global , Humanos , Embarazo , Análisis de Regresión
7.
Psychogeriatrics ; 21(3): 418-429, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33634922

RESUMEN

Ageism in health-care services is a cardinal public health concern in geriatric health. It is important to know the types and extent of discrimination experienced by elderly individuals while seeking health care. This systematic review aimed to explore the available research to identify discrimination of elderly individuals in health-care services. MEDLINE through PubMed, Web of Science, PsycInfo, and Cochrane Database were searched by using a comprehensive search strategy in September 2020 with no limitation in the year of publication and types of publication. Articles published in English focusing on disparities in health-care service among the elderly were included. Two independent authors screened, extracted, and assessed the quality of data using the Joanna Briggs Institute Critical Appraisal Tool. A narrative synthesis was conducted followed by qualitative content analysis to identify themes from the extracted outcomes of the included studies. Of 3117 articles retrieved from the initial search, 21 articles were included. A total of 611 608 participants from 38 countries in four geographic regions were reported. Articles were published between 2003 and 2020. Most of the studies (n = 19) were cross-sectional in design, and the remaining two studies were qualitative. Major themes of discrimination were age-related discrimination, racial discrimination, gender discrimination, wealth-related discrimination, and technology-related discrimination. This systematic review identified the major perspectives on disparities faced by the elderly in accessing health services. There is a huge research gap on this issue. Specific strategies should be incorporated to address the varying types of discrimination experienced by elderly individuals.


Asunto(s)
Ageísmo , Servicios de Salud para Ancianos , Anciano , Estudios Transversales , Humanos
8.
Psychogeriatrics ; 21(3): 311-316, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33598980

RESUMEN

BACKGROUND: Physicians' job satisfaction plays an important role in service delivery. Japan is a country with a higher number of elderly people and their medical care is a crucial issue. To date, no study has been conducted on the job satisfaction of geriatricians serving the elderly in Japan. This study aims to explore the job satisfaction and motivation of physicians providing health care to the elderly working at different hospitals in Japan. METHODS: In-depth interview of 23 geriatric physicians was conducted and data were coded and analysed. Qualitative content analysis was conducted to identify the response themes. RESULTS: Three major themes emerged from the analysis and they are: satisfaction as a primary care provider, career development, and suitable communication with patients. Geriatric physicians enjoy their work with inter-professional collaboration and are satisfied to provide primary health care to elderly people. Geriatrics is a very promising career to them and they enjoy the communication and empathetic doctor-patient relationship in their service. CONCLUSIONS: Japanese physicians providing health care to the elderly are enjoying their work due to a suitable environment, multi-professional collaboration, work-life balance, and patient-doctor relationship.


Asunto(s)
Satisfacción en el Trabajo , Médicos , Anciano , Humanos , Japón , Motivación , Relaciones Médico-Paciente , Encuestas y Cuestionarios
9.
J Peripher Nerv Syst ; 25(4): 335-343, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-33112450

RESUMEN

Several published reports have described a possible association between Guillain-Barré syndrome (GBS) and severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. This systematic review aimed to summarize and meta-analyze the salient features and prognosis of SARS-CoV-2-associated GBS. We searched the PubMed (Medline), Web of Science and Cochrane databases for articles published between 01 January 2020 and 05 August 2020 using SARS-CoV-2 and GBS-related keywords. Data on sociodemographic characteristics, antecedent symptoms, clinical, serological and electrophysiological features, and hospital outcomes were recorded. We included 45 articles from 16 countries reporting 61 patients with SARS-CoV-2-associated GBS. Most (97.7%) articles were from high- and upper-middle-income countries. Forty-two (68.9%) of the patients were male; median (interquartile range) age was 57 (49-70) years. Reverse transcriptase polymerase chain reaction for SARS-CoV-2 was positive in 90.2% of patients. One report of SARS-CoV-2-associated familial GBS was found which affected a father and daughter of a family. Albuminocytological dissociation in cerebrospinal fluid was found in 80.8% of patients. The majority of patients (75.5%) had a demyelinating subtype of GBS. Intravenous immunoglobulin and plasmapheresis were given to 92.7% and 7.3% of patients, respectively. Around two-thirds (65.3%) of patients had a good outcome (GBS-disability score ≤ 2) on discharge from hospital. Two patients died in hospital. SARS-CoV-2-associated GBS mostly resembles the classical presentations of GBS that respond to standard treatments. Extensive surveillance is required in low- and lower-middle-income countries to identify and report similar cases/series. Further large-scale case-control studies are warranted to strengthen the current evidence. PROSPERO Registration Number CRD42020201673.


Asunto(s)
COVID-19/complicaciones , Síndrome de Guillain-Barré/virología , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , SARS-CoV-2
10.
Public Health ; 179: 147-159, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31830665

RESUMEN

OBJECTIVES: Lack of physical activity (PA) contributes to increasing prevalence of non-communicable diseases (NCDs) globally. However, little is known about PA and sedentary behaviour (SB) among populations in low- and middle-income countries (LMICs). This systematic review examined prevalence of PA and SB in Bangladesh. STUDY DESIGN: Systematic review of the literature. METHODS: A systematic electronic search in eight databases and a manual search of retrieved articles' references were conducted. Original research conducted in Bangladesh with PA- and/or SB-related outcome(s) were included. RESULTS: Out of 1,162 retrieved titles, 33 articles (32 cross-sectional and one case-control study) met the inclusion criteria. Twenty-nine studies were with healthy populations: adults (n = 19); children and adolescents (n = 7); and children, adolescents and adults (n = 3). Five studies used nationally representative samples of adults and one of adolescents. Most studies (n = 26) assessed PA only; three only SB, and four both PA and SB. All studies used self-reported measures. Among healthy adults, prevalence of insufficient PA ranged from 5% to 83%. Occupational and transport-related PA contributed the most towards total PA with negligible contribution of recreational PA. Among children and adolescents, the prevalence of insufficient PA ranged between 20% and 67%. Females engaged in less PA compared to males. Limited evidence currently exists about the prevalence of SB, especially among adults. CONCLUSIONS: PA and SB research has received little attention in Bangladesh. Critical knowledge gaps identified in this review should be taken into account when designing new research and programmes in Bangladesh and other LMICs with similar socio-economic and cultural settings.


Asunto(s)
Ejercicio Físico , Conducta Sedentaria , Bangladesh , Humanos
11.
Environ Health Prev Med ; 25(1): 62, 2020 Oct 14.
Artículo en Inglés | MEDLINE | ID: mdl-33054709

RESUMEN

BACKGROUND: Tobacco consumption causes almost 638,000 premature deaths per year in India. This study sought to examine the prevalence and determinants of tobacco use among men in India. METHODS: We analyzed data from the fourth round of the National Family Health Survey in India. These nationally representative cross-sectional sample data were collected from January 20, 2015, to December 4, 2016. A total of 112,122 men aged 15-54 years were included in this study. Primary outcomes were tobacco use categorized into smoking, smokeless, any tobacco, and both smoked and smokeless tobacco use. Complex survey design and sampling weights were applied in both the descriptive analyses and logistic regression models. We present the findings using odds ratios. RESULTS: The prevalence of tobacco use among men in India for the studied period was 45.5% (95% CI 44.9-46.1), smoking was 24.6% (95% CI 24.1-25.1), smokeless tobacco use was 29.1% (95% CI 28.6-29.6), and both smoked and smokeless tobacco use was 8.4% (95% CI 8.1-8.7). The prevalence of tobacco use among men was higher among the elderly, separated/divorced/widowed individuals, those with lower education and wealth status, alcohol consumers, manual workers, and residents of the northeast region. Multivariate analysis showed that age, lower education, occupation, region, alcohol consumption, separated/divorced/widowed status, and economic status were substantially associated with tobacco use among Indian men. CONCLUSIONS: Innovative and cost-effective strategies targeting high-risk groups are crucial to curbing the tobacco epidemic in India. Anti-smoking campaigns should also focus on mitigating alcohol abuse. Reducing tobacco marketing and implementing formal education about the dangers of tobacco use, progressive taxing, packaging, and labeling of tobacco products and price strategies should be harmonized in legal provisions.


Asunto(s)
Factores Socioeconómicos , Adolescente , Adulto , Humanos , India/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Uso de Tabaco/epidemiología , Adulto Joven
12.
Environ Health Prev Med ; 24(1): 65, 2019 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-31775610

RESUMEN

BACKGROUND: Little is known regarding the effect of exposure to biomass fuel smoke inhalation on respiratory symptoms in the Bangladeshi population which is a major health hazard in most of the developing countries. This study aims to explore the association between respiratory symptoms and biomass fuel smoke exposure among children under 5 years of age. METHODS: Data were extracted from the Bangladesh Urban Health Survey conducted in 2013. A total of 10,575 mothers with at least one surviving children were selected. Respiratory symptoms among children under 5 years of age were considered as the primary outcome. Sequential multiple logistic regression models were used to observe the association between respiratory symptoms and biomass fuel smoke exposure adjusting the effect of residential factors and mother and child characteristics. RESULTS: Around 40% of the mothers exclusively used biomass fuel irrespective of the kitchen location and 54% of them were habituated in indoor cooking. The prevalence of respiratory symptoms of under-five children among in-house and outdoor biomass fuel users was 23.0% and 21.9%, respectively. Results of fitted multiple logistic regression models showed that the odds of having respiratory symptoms among children under 5 years of age were increased due to in-house biomass fuel use [OR = 1.18; 95% CI, 1.04-1.36] compared with the non-biomass user. An increased risk of respiratory symptoms was also significantly associated with mother's birth complication [OR = 1.51; 95% CI, 1.36-1.67], non-government organization (NGO) membership of mothers [OR = 1.32; 95% CI, 1.16-1.51], age of the child (6-23m) [OR = 1.29; 95% CI, 1.10-1.52], and nutritional status (stunting) [OR = 1.18; 95% CI, 1.06-1.31]. CONCLUSION: This study found the use of in-house biomass fuel as a significant risk factor associated with respiratory symptoms of children under 5 years of age. More longitudinal studies should be designed to establish a causal relationship between HAP (household air pollution) and respiratory symptoms among children with more direct measures of HAP and clinical procedure.


Asunto(s)
Contaminantes Atmosféricos/efectos adversos , Exposición por Inhalación/efectos adversos , Trastornos Respiratorios/epidemiología , Trastornos Respiratorios/etiología , Humo/efectos adversos , Contaminación del Aire Interior/efectos adversos , Bangladesh/epidemiología , Biomasa , Preescolar , Culinaria/métodos , Estudios Transversales , Femenino , Encuestas Epidemiológicas , Humanos , Lactante , Recién Nacido , Masculino , Madres , Prevalencia , Factores de Riesgo , Salud Urbana
13.
BMC Genomics ; 18(1): 903, 2017 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-29178823

RESUMEN

BACKGROUND: Household contacts of cholera patients have a 100 times higher risk of developing a cholera infection than the general population. To compare the genetic relatedness of clinical and water source Vibrio cholerae isolates from cholera patients' households across three outbreaks, we analyzed these isolates using whole-genome-sequencing (WGS) and multilocus variable-number tandem-repeat analysis (MLVA). RESULTS: The WGS analyses revealed that 80% of households had source water isolates that were more closely related to clinical isolates from the same household than to any other isolates. While in another 20% of households an isolate from a person was more closely related to clinical isolates from another household than to source water isolates from their own household. The mean pairwise differences in single nucleotide-variant (SNV) counts for isolates from the same household were significantly lower than those for different households (2.4 vs. 7.7 p < 0.0001), and isolates from the same outbreak had significantly fewer mean pairwise differences compared to isolates from different outbreaks (mean: 6.2 vs. 8.0, p < 0.0001). Based on MLVA in outbreak 1, we observed that the majority of households had clinical isolates with MLVA genotypes related to other clinical isolates and unrelated to water source isolates from the same household. While in outbreak 3, there were different MLVA genotypes between households, however within the majority of households, the clinical and water source isolates had the same MLVA genotypes. The beginning of outbreak 2 resembled outbreak 1 and the latter part resembled outbreak 3. We validated our use of MLVA by comparing it to WGS. Isolates with the identical MLVA genotype had significantly fewer mean pairwise SNV differences than those isolates with different MLVA genotypes (mean: 4.8 vs. 7.7, p < 0.0001). Furthermore, consistent with WGS results, the number of pairwise differences in the five MLVA loci for isolates within the same household was significantly lower than isolates from different households (mean: 1.6 vs. 3.0, p < 0.0001). CONCLUSION: These results suggest that transmission patterns for cholera are a combination of person-to-person and water-to-person cholera transmission with the proportions of the two modes varying within and between outbreaks.


Asunto(s)
Cólera/epidemiología , Cólera/microbiología , Brotes de Enfermedades , Vibrio cholerae/genética , Bangladesh/epidemiología , Cólera/transmisión , Genoma Bacteriano , Genotipo , Humanos , Análisis de Secuencia de ADN , Secuencias Repetidas en Tándem , Vibrio cholerae/aislamiento & purificación , Microbiología del Agua
14.
Trop Med Int Health ; 22(2): 205-209, 2017 02.
Artículo en Inglés | MEDLINE | ID: mdl-27754582

RESUMEN

OBJECTIVE: In urban Dhaka, Bangladesh, 30% of source water samples collected from the households of patients with cholera had detectable Vibrio cholerae. These findings indicate an urgent need for a public health intervention for this population. The Crystal VC® dipstick test is a rapid method for detecting V. cholerae in stool and water. However, to date no study has investigated the use of the rapid dipstick test for household surveillance of stored drinking water. METHODS: The efficacy of the Crystal VC® dipstick test for detecting V. cholerae in the Dhaka city municipal water supply and stored household drinking water sources after enrichment for 18 h in alkaline peptone water (APW) was compared to bacterial culture as the gold standard. RESULTS: A total of 1648 water samples (824 stored household drinking water samples and 824 municipal water supply samples) were collected from households of patients with cholera. The overall specificity and sensitivity of the dipstick test compared to bacterial culture was 99.6% (95% confidence interval (CI): 99.2%, 99.9%) and 65.6% (95% CI: 55.2%, 75%), respectively. The specificities for stored household drinking water and Dhaka city municipal supply water compared to bacterial culture were 99.8% (95% CI: 99.1%, 100%) and 99.5% (95% CI: 98.6%, 99.9%), respectively (P = 0.138), and the sensitivities were 66.7% (95% CI: 43.0%, 85.4%) and 65.3% (95% CI: 53.5%, 76.0%), respectively (P = 0.891). CONCLUSION: The Crystal VC® dipstick is a promising screening tool for cholera outbreak surveillance in resource-limited settings where elimination of false-positive results is critical. The lower than expected sensitivity should be further investigated in future studies.


Asunto(s)
Cólera/epidemiología , Brotes de Enfermedades/prevención & control , Juego de Reactivos para Diagnóstico , Vibrio cholerae/aislamiento & purificación , Microbiología del Agua , Técnicas Bacteriológicas , Bangladesh , Cólera/diagnóstico , Composición Familiar , Humanos , Sensibilidad y Especificidad , Abastecimiento de Agua
15.
Emerg Infect Dis ; 22(2): 233-41, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26811968

RESUMEN

The risk for cholera infection is >100 times higher for household contacts of cholera patients during the week after the index patient seeks hospital care than it is for the general population. To initiate a standard of care for this high-risk population, we developed Cholera-Hospital-Based-Intervention-for-7-Days (CHoBI7), which promotes hand washing with soap and treatment of water. To test CHoBI7, we conducted a randomized controlled trial among 219 intervention household contacts of 82 cholera patients and 220 control contacts of 83 cholera patients in Dhaka, Bangladesh, during 2013-2014. Intervention contacts had significantly fewer symptomatic Vibrio cholerae infections than did control contacts and 47% fewer overall V. cholerae infections. Intervention households had no stored drinking water with V. cholerae and 14 times higher odds of hand washing with soap at key events during structured observation on surveillance days 5, 6, or 7. CHoBI7 presents a promising approach for controlling cholera among highly susceptible household contacts of cholera patients.


Asunto(s)
Cólera/prevención & control , Infección Hospitalaria/prevención & control , Hospitales , Higiene , Purificación del Agua , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Bangladesh/epidemiología , Niño , Preescolar , Cólera/epidemiología , Cólera/microbiología , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Composición Familiar , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Vibrio cholerae/aislamiento & purificación , Adulto Joven
16.
Trop Med Int Health ; 19(3): 301-307, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24401137

RESUMEN

BACKGROUND: To evaluate the specificity of the Crystal VC dipstick test for detecting cholera. METHODS: We compared direct testing using the Crystal VC dipstick test and testing after enrichment for 6 h in alkaline peptone water (APW) to bacterial culture as the gold standard. Samples positive by dipstick but negative by culture were also tested using PCR. RESULTS: Stool was collected from 125 patients. The overall specificities of the direct testing and testing after 6-h enrichment in APW compared to bacterial culture were 91.8% and 98.4% (P = 0.125), respectively, and the sensitivities were 65.6% and 75.0% (P = 0.07), respectively. CONCLUSION: The increase in the sensitivity of the Crystal VC kit with the use of the 6-h enrichment step in APW compared to direct testing was marginally significant. The Crystal VC dipstick had a much higher specificity than previously reported (91-98%). Therefore, this method might be a promising screening tool for cholera outbreak surveillance in resource-limited settings where elimination of false-positive results is critical.


Asunto(s)
Cólera/diagnóstico , Diarrea/diagnóstico , Brotes de Enfermedades , Heces/microbiología , Vibrio cholerae/aislamiento & purificación , Adolescente , Adulto , Anciano , Técnicas Bacteriológicas/métodos , Bangladesh , Niño , Preescolar , Medios de Cultivo , Diarrea/microbiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa , Juego de Reactivos para Diagnóstico , Sensibilidad y Especificidad , Manejo de Especímenes/métodos , Adulto Joven
17.
Health Sci Rep ; 7(8): e2306, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39139462

RESUMEN

Background and Aims: The emergence of the COVID-19 pandemic led to the adoption of telework modalities by individuals in Bangladesh. The study's objective was to determine the job satisfaction and performance level of employed Bangladeshi women working from home during the COVID-19 pandemic lockdown. Methods: A cross-sectional study was conducted among women employees of different professions in Dhaka city. The Minnesota Satisfaction Questionnaire (MSQ) was used to measure job satisfaction. Work arrangement satisfaction and self-reported performance were measured by two separate subscales which contain five items each. Responses from 118 employed women were analyzed using descriptive statistics, Pearson Chi-square tests, Independent t-tests, one-way analysis of variance, and Pearson Correlation tests through the Statistical Package for Social Science (SPSS), version 26. Results: The findings indicated that 51.7% of women reported a high degree of satisfaction on the MSQ scale; 61.9% expressed high satisfaction with their work arrangements at home and 66.9% reported a high level of performance. Job satisfaction was significantly associated with the number of children and the number of family members. A positive association was found between job satisfaction and total working experience and work arrangements. Work performance was strongly associated with higher educational qualifications. A statistically significant association between job satisfaction and performance was revealed. Conclusions: The findings from this study indicated a high degree of job satisfaction and a high level of performance found in women employees who worked from home during the COVID-19 pandemic. These findings encourage organizations to foster more policies for telework alternatives for employed women to help them keep a balance between work responsibilities and household chores.

18.
J Rural Med ; 19(3): 158-165, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38975035

RESUMEN

Objective: Even though dynamic multidisciplinary team discussions are crucial for end-of-life care management and decisions concerning chronic obstructive pulmonary disease (COPD), the details of the discussion contents remain poorly understood. This study aimed to identify essential considerations in decision-making for patients with chronic respiratory diseases to enhance a consensus-based approach. Materials and Methods: A qualitative content analysis of focus group conversations on published clinical case reports in the Japanese community about end-of-life care for patients with chronic respiratory disorders was conducted. The cases were searched through Igaku Chuo Zasshi (ICHUSHI) and Google in February 2021, using the keywords: "COPD", "chronic respiratory diseases", and "end-of-life care". A total of 41 healthcare professionals participated in the focus group discussions. Results: Four major themes evolved from the qualitative content analysis: unpredictable disease prognosis and stages, low awareness of patients on disease severity, acute exacerbations, and home oxygen therapy (HOT). The participants perceived that assessment of severity and prognosis in chronic respiratory diseases such as COPD was a core discussion point to enhance patients' decision-making. The study's findings also indicated that healthcare providers evaluate the influence of acute aggravation of the condition on patients' perceived health status and decision-making. Conclusion: The study reaffirms the significance of informed consent in patients with chronic respiratory disease. It details how, after a thorough assessment of disease severity, patients are given personalized explanations of standardized HOT. This approach ensures they fully understand the unpredictable nature and various stages of their condition resulting from acute exacerbations.

19.
J Clin Epidemiol ; : 111518, 2024 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-39245414

RESUMEN

Rapid reviews have gained popularity as a pragmatic approach to synthesise evidence in a timely manner to inform decision-making in healthcare. This article provides an overview of the key concepts and methodological considerations in conducting rapid reviews, drawing from a series of recently published guidance papers by the Cochrane Rapid Reviews Methods Group. We discuss the definition, characteristics, and potential applications of rapid reviews and the trade-offs between speed and rigour. We present a practical example of a rapid review and highlight the methodological considerations outlined in the updated Cochrane guidance, including recommendations for literature searching, study selection, data extraction, risk of bias assessment, synthesis, and assessing the certainty of evidence. Rapid reviews can be a valuable tool for evidence-based decision-making, but it is essential to understand their limitations and adhere to methodological standards to ensure their validity and reliability. As the demand for rapid evidence synthesis continues to grow, further research is needed to refine and standardise the methods and reporting of rapid reviews.

20.
New Microbes New Infect ; 58: 101233, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38425457

RESUMEN

Background: Since the first case of COVID-19 was diagnosed in Wuhan, China in late 2019, concomitant infections with Herpesviridae were documented that were presented from simple skin manifestations to severe life-threatening conditions that may lead to mortality. In this systematic review, we have included studies conducted in different parts of the world to find out the association of clinical features and outcomes of COVID-19 infection and concomitant Herpesviridae infection. Methods: A comprehensive search was conducted in electronic databases including Medline through PubMed, Cochrane database, Scopus and Web of science (core collection). Two review authors independently screened the articles and extracted data. The Risk of bias assessment was done by using RoBANS tool. Results: A total of 919 studies were retrieved and 19 studies were included having data of 539 patients who were infected with both COVID-19 and Herpesviridae. Herpes Simplex-1, Varicella Zoster, Cytomegalovirus, Epstein-Barr virus and Human Herpes Virus-6 were the detected viruses in the included studies. Cytomegalovirus (CMV) reactivation was the most detected concomitant infection. In case of reactivation with more than one Herpes virus mortality among patients were detected along with single viral infection in some studies. Significant association was noted in dosage and usage of steroid and Herpesviridae reactivation in COVID-19 patients. Blood markers such as D-dimer, CRP along with length of stay in the ICU and usage of invasive mechanical ventilation were found to be the significantly associated markers. Conclusion: Findings from this study will aid clinicians to assess and treat COVID-19 cases with co-infections.

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