Human Noroviruses (HuNoVs) are the leading etiologic agents responsible for viral gastroenteritis. Drinking water (DW) serves as a significant vehicle for the transmission of HuNoVs. This study aimed to assess the occurrence of HuNoVs in drinking water sources (DWS) and DW. A systematic search spanning Web of Science, EMBASE, PubMed, and Cochrane Central Register of Controlled Trials was executed up to July 15, 2024. Following rigorous screening, 76 eligible studies underwent meta-analysis with heterogeneity assessment via Stata 14.0 using a random-effects model. The results indicated that the pooled occurrence of HuNoVs was 11 % (95 % CI: 8-14), with occurrence of 15 % (95 % CI: 10-21) in DWS and 6 % (95 % CI: 3-9) in DW. Subgroup meta-analysis demonstrated that genogroup II (GII) of HuNoVs exhibited the highest contamination occurrence of 7 % (95 % CI: 4-10), with GII.4 and GII.17 being the predominant genotypes. The two continents with the highest number of studies were Asia (n = 27) and Europe (n = 19), with HuNoVs occurrence of 14 % (95 % CI: 8-22) and 15 % (95 % CI: 7-26), respectively. Furthermore, the occurrence showed no significant differences across the four seasons: in spring, the occurrence was 11 % (95 % CI: 3-23); in summer, 15 % (95 % CI: 7-25); in autumn, 11 % (95 % CI: 2-24); and in winter, 18 % (95 % CI: 10-27). These findings provided valuable epidemiological insight into the global occurrence, seasonal variation, and genotypic distribution of HuNoVs in DWS and DW, aiding policy development and public health strategies.

Abstract Background: Voluntary stopping of eating and drinking (VSED) is a way to end one's life prematurely. We synthesized the empirical data on VSED. Methods: In this systematic mixed-methods review, we searched MEDLINE, CINAHL, PsycINFO, Google Scholar, and BELIT for English and German articles published between January 1, 2013 and November 12, 2021. We included quantitative and qualitative research examining the experiences, attitudes, and knowledge of people confronted with VSED. We inductively analyzed the data after quantitative data transformation. We assessed quality and confidence using the Mixed-Methods Appraisal Tool and GRADE-CERQual approach, respectively. This study was registered in PROSPERO (CRD42022283743). Findings: We identified 22 eligible articles, comprising 16 studies. The participants were healthcare professionals and relatives, but not individuals undertaking VSED. We present here our findings on the challenges of accompanying VSED, positive experiences with VSED, and the identified needs. Support during VSED is needed at multiple levels (medical care, family relief, course planning), and the willingness to accompany VSED is very high among healthcare professionals. However, there are several problems, the most obvious being the lack of knowledge and expertise regarding VSED, placing a great burden on families and professionals. The confidence in the review findings ranged from moderate to low. Interpretation: Evidence-based guidance, in-depth knowledge, and training of healthcare professionals can greatly reduce the burden and fear among individuals accompanying VSED.

This state-of-the-science review is aimed at identifying the sources, occurrence, and concentrations of EDCs, including potential public health risks associated with drinking water and aquatic food resources from Nigerian inland waters. A total of 6024 articles from scientific databases (PubMed, Scopus, Web of science, ScienceDirect, Google Scholar, and African Journals Online) were identified, out of which, 103 eligible articles were selected for this study. Eleven (11) classes of EDCs (OCPs, PCBs, PBDEs, PAHs, BPA, OTs, PEs, PCs, PPCPs, sterols and n-alkanes) were identified from drinking waters, river sediments and aquatic food species from Nigerian rivers, showing that OCPs were the most studied and reported EDCs. Analytical methods used were HPLC, LC-MS/MS, GC-FID, GC-ECD and GC-MS with all EDCs identified to originate from anthropogenic sources. Carcinogenic, mutagenic, and teratogenic effects were the highest (54.4 %) toxicological effects identified, while reproductive/endocrine disruptive effects (15.2 %) and obesogenic effects (4.3 %) were the least identified toxicological effects. The targeted hazard quotient (THQ) and cancer risk (CR) were generally highest in children, compared to the adult populations, indicating age-specific toxicity. PEs produced the highest THQ (330.3) and CR (1.2) for all the EDCs in drinking water for the children population, suggesting enhanced vulnerability of this population group, compared to the adult population. Due to associated public health, wildlife and environmental risk of EDCs and their increasing concentrations in drinking water and food fish species from Nigerian inland waters, there is an urgent need for focused and strategic interventions, sensitization and policy formulation/implementation towards public health and aquatic food safety in Nigeria.

This study identified and mapped worldwide surveillance actions and initiatives of drinking water quality implemented by government agencies and public health services. The scoping review was conducted between July 2021 and August 2022 based on the Joanna Briggs Institute method. The search was performed in relevant databases and gray literature; 49 studies were retrieved. Quantitative variables were presented as absolute and relative frequencies, while qualitative variables were analyzed using the IRaMuTeQ software. The actions developed worldwide and their impacts and results generated four thematic classes: (1) assessment of coverage, accessibility, quantity, and drinking water quality in routine and emergency situations; (2) analysis of physical-chemical and microbiological parameters in public supply networks or alternative water supply solutions; (3) identification of household water contamination, communication, and education with the community; (4) and investigation of water-borne disease outbreaks. Preliminary results were shared with stakeholders to favor knowledge dissemination.

Background Mild cognitive impairment (MCI) is a cognitive state falling between normal aging and dementia. The relation between alcohol intake and risk of MCI as well as progression to dementia in people with MCI (PDM) remained unclear. Objective To synthesize available evidence and clarify the relation between alcohol intake and risk of MCI as well as PDM. Method We searched electronic databases consisting of PubMed, EMBASE, Cochrane Library, and China Biology Medicine disc (CBM) from inception to October 1, 2019. Prospective studies reporting at least three levels of alcohol exposure were included. Categorical meta-analysis was used for quantitative synthesis of the relation between light, moderate and heavy alcohol intake with risk of MCI and PDM. Restricted cubic spline and fixed-effects dose-response models were used for dose-response analysis. Result Six cohort studies including 4244 individuals were finally included. We observed an unstable linear relation between alcohol intake (drinks/week) and risk of MCI (P linear = 0.0396). It suggested that a one-drink increment per week of alcohol intake was associated with an increased risk of 3.8% for MCI (RR, 1.038; 95% CI 1.002-1.075). Heavy alcohol intake (> 14 drinks/week) was associated with higher risk of PDM (RR = 1.76; 95% CI 1.10-2.82). And we found a nonlinear relation between alcohol intake and risk of PDM. Drinking more than 16 drinks/week (P nonlinear = 0.0038, HR = 1.42; 95% CI 1.00-2.02), or 27.5 g/day (P nonlinear = 0.0047, HR = 1.46; 95% CI 1.00-2.11) would elevate the risk of PDM. Conclusion There was a nonlinear dose-response relation between alcohol intake and risk of PDM. Excessive alcohol intake would elevate the risk of PDM.

OBJECTIVES: The objective of this systematic review is to assess the effectiveness of regulatory, environmental and educational interventions for reducing blood lead levels (BLLs) and associated health outcomes in children, pregnant women and the general population. METHODS: Searches were run in MEDLINE, EMBASE and the Global Health Library up until August 2015. Studies were eligible for inclusion if they assessed the impact of regulatory, environmental or educational interventions, stand-alone or in combination, on BLLs among children, pregnant women or the general population through randomized controlled trials (RCT), controlled before-after (CBA), interrupted time series (ITS), uncontrolled before-after (UBA) or repeated cross-sectional studies. Studies assessing the impact of interventions to reduce exposure to lead in paint or household dust as well as studies concerned exclusively with environmental concentrations of lead were not included. As documented in a detailed protocol, screening, data extraction and quality appraisal were largely undertaken according to Cochrane standards. Harvest plots were used to graphically summarize evidence of effectiveness. RESULTS: The searches yielded 6466 unique records, of which five met our eligibility criteria; two additional eligible studies were identified by experts. We did not find any studies regarding the effectiveness of regulatory, educational or environmental interventions targeting exposure to lead in consumer products. Evidence regarding the effectiveness of interventions in reducing BLLs from exposures through drinking water is limited in both quantity and quality. Stand-alone targeted educational interventions showed no statistically significant reductions in children's BLL (two RCT) when compared to general educational interventions. Likewise, instructing women to reduce or eliminate lead-contaminated drinking water showed no effect on BLL (one RCT). Stand-alone environmental interventions appeared more promising in reducing BLL (three UBA). Combining educational and environmental interventions and targeting multiple settings may be effective in reducing BLL, as suggested by one uncontrolled before-after study. No studies examining the effectiveness of regulatory interventions were found. CONCLUSIONS: The limited quantity and quality of the evidence measuring BLL and associated health outcomes points to an urgent need for more robust research into the effectiveness of interventions to reduce lead exposure from consumer products and drinking water, especially for regulatory interventions

BACKGROUND: Self-help interventions without professional contact to curb adult problem drinking in the community are increasingly being delivered via the Internet. OBJECTIVE: The objective of this meta-analysis was to assess the overall effectiveness of these eHealth interventions. METHODS: In all, 9 randomized controlled trials (RCTs), all from high-income countries, with 9 comparison conditions and a total of 1553 participants, were identified, and their combined effectiveness in reducing alcohol consumption was evaluated by means of a meta-analysis. RESULTS: An overall medium effect size (g = 0.44, 95% CI 0.17-0.71, random effect model) was found for the 9 studies, all of which compared no-contact interventions to control conditions. The medium effect was maintained (g = 0.39; 95% CI 0.23-0.57, random effect model) after exclusion of two outliers. Type of control group, treatment location, type of analysis, and sample size did not have differential impacts on treatment outcome. A significant difference (P = .04) emerged between single-session personalized normative feedback interventions (g = 0.27, 95% CI 0.11-0.43) and more extended e- self-help (g = 0.61, 95% CI 0.33-0.90). CONCLUSION: E-self-help interventions without professional contact are effective in curbing adult problem drinking in high-income countries. In view of the easy scalability and low dissemination costs of such interventions, we recommend exploration of whether these could broaden the scope of effective public health interventions in low- and middle-income countries as well.