36 research outputs found
Back to field: uncertainty and risk in field research
The rapid spread of COVID-19 beginning in early 2020 caused global disruption. As the risk of infection rose and public health authorities around the world enacted measures to contain the virus, everyday life ground to a halt. Activities that seemed routine in late 2019 became fraught with uncertainty. Fieldwork was no exception. Most field researchers had to change or cancel at least some of their plans; some left their field in a hurry before travel was shut down while others had to lock down on site; most academic institutions restricted travel, with some even prohibiting all forms of international movement. In brief, many traditional forms of fieldwork became all but impossible during the pandemic
Analysis of clinical and virologic features in Hepatitis B e Antigen (HbeAg)-negative and HbeAg-positive Egyptian chronic hepatitis B patients
Background: HBeAg\u2013negative chronic hepatitis B infection has a
divergent clinical course from that of HBeAg-positive infection.
Objectives: To analyze the frequency and to compare the different
features of HBeAg-negative and HBeAg-positive chronic hepatitis B
patients. Methods: One hundred and twenty one Egyptian patients with
chronic hepatitis B (CHB), underwent laboratory investigations and
transient elastography (TE). Comparisons according to HBeAg status were
conducted regarding their demographic, liver biochemical and virologic
characters. Results: 97 patients (80.2%) were HBeAg-negative while 24
patients (19.8%) were HBeAg-positive. HBeAg-negative patients were
significantly older in age than CHBeAg-positive patients (p=0.001). ALT
levels in HBeAg-negative patients were significantly lower than those
in HBeAg-positive patients (p=0.02), whereas serum albumin was lower in
the HBeAg-positive group (p=0.03). The percentage of HBV DNA higher
than 20000 IU/mL in HBeAg-negative patients was lower than those in
HBeAg-positive patients (p=0.24). Stages of fibrosis by TE showed that
30.9% of HBeAg-negative and 41.7% of HBeAg-positive had a fibrosis
score >F2. Four patients (3.3%) were diagnosed with HCC; all of whom
were HBeAg-negative. Conclusion: HBeAg-negative patients compared with
HBeAg-positive patients had older age, lower ALT and serum HBVDNA
levels, but more incidence of HCC
Cytotoxicity, Intracellular Replication, and Contact-Dependent Pore Formation of Genotyped Environmental Legionella pneumophila Isolates from HospitalWater Systems in the West Bank, Palestine
Legionella pneumophila is the causative agent of Legionnaires’ disease. Due to the hot climate
and intermittent water supply, the West Bank, Palestine, can be considered a high-risk area for
this often fatal atypical pneumonia. L. pneumophila occurs in biofilms of natural and man-made
freshwater environments, where it infects and replicates intracellularly within protozoa. To correlate
the genetic diversity of the bacteria in the environment with their virulence properties for protozoan
and mammalian host cells, 60 genotyped isolates from hospital water systems in the West Bank were
analyzed. The L. pneumophila isolates were previously genotyped by high resolution Multi Locus
Variable Number of Tandem Repeat Analysis (MLVA-8(12)) and sorted according to their relationship
in clonal complexes (VACC). Strains of relevant genotypes and VACCs were compared according
to their capacity to infect Acanthamoeba castellanii and THP-1 macrophages, and to mediate poreforming
cytotoxicity in sheep red blood cells (sRBCs). Based on a previous detailed analysis of the
biogeographic distribution and abundance of the MLVA-8(12)-genotypes, the focus of the study was
on the most abundant L. pneumophila- genotypes Gt4(17), Gt6 (18) and Gt10(93) and the four relevant
clonal complexes [VACC1, VACC2, VACC5 and VACC11]. The highly abundant genotypes Gt4(17)
and Gt6(18) are affiliated with VACC1 and sequence type (ST)1 (comprising L. pneumophila str. Paris),
and displayed seroroup (Sg)1. Isolates of these two genotypes exhibited significantly higher virulence
potentials compared to other genotypes and clonal complexes in theWest Bank. Endemic for theWest
Bank was the clonal complex VACC11 (affiliated with ST461) represented by three relevant genotypes
that all displayed Sg6. These genotypes unique for the West Bank showed a lower infectivity and
cytotoxicity compared to all other clonal complexes and their affiliated genotypes. Interestingly, the
L. pneumophila serotypes ST1 and ST461 were previously identified by in situ-sequence based typing
(SBT) as main causative agents of Legionnaires’ disease (LD) in the West Bank at a comparable level.
Overall, this study demonstrates the site-specific regional diversity of L. pneumophila genotypes in
theWest Bank and suggests that a combination of MLVA, cellular infection assays and hierarchical
agglomerative cluster analysis allows an improved genotype-based risk assessment
Characterization of Legionella pneumophila Populations by Multilocus Variable Number of Tandem Repeats (MLVA) Genotyping from Drinking Water and Biofilm in Hospitals from Di erent Regions of the West Bank
The West Bank can be considered a high-risk area for Legionnaires’ disease (LD) due to
its hot climate, intermittent water supply and roof storage of drinking water. Legionella, mostly
L. pneumophila, are responsible for LD, a severe, community-acquired and nosocomial pneumonia.
To date, no extensive assessment of Legionella spp and L. pneumophila using cultivation in combination
with molecular approaches in the West Bank has been published. Two years of environmental
surveillance of Legionella in water and biofilms in the drinking water distribution systems (DWDS)
of eight hospitals was carried out; 180 L. pneumophila strains were isolated, mostly from biofilms in
DWDS. Most of the isolates were identified as serogroup (Sg) 1 (60%) and 6 (30%), while a minor
fraction comprised Sg 8 and 10. Multilocus Variable number of tandem repeats Analysis using
13 loci (MLVA-8(12)) was applied as a high-resolution genotyping method and compared to the
standard Sequence Based Typing (SBT). The isolates were genotyped in 27 MLVA-8(12) genotypes
(Gt), comprising four MLVA clonal complexes (VACC 1; 2; 5; 11). The major fraction of isolates
constituted Sequence Type (ST)1 and ST461. Most of the MLVA-genotypes were highly diverse and
often unique. The MLVA-genotype composition showed substantial regional variability. In general,
the applied MLVA-method made it possible to reproducibly genotype the isolates, and was consistent
with SBT but showed a higher resolution. The advantage of the higher resolution was most evident
for the subdivision of the large strain sets of ST1 and ST461; these STs were shown to be highly
pneumonia-relevant in a former study. This shows that the resolution by MLVA is advantageous for
back-tracking risk sites and for the avoidance of outbreaks of L. pneumophila. Overall, our results
provide important insights into the detailed population structure of L. pneumophila, allowing for better
risk assessment for DWDS.Funding: This work was supported by DFG grant (HO 930/5-1&2) and the Hildegard-Elisabeth Foundation.
Acknowledgments: We thank the administration of the hospitals for allowing us to collect the samples. We thank
the PalestinianWater Authority (PWA) for helpful support, information and data. We are grateful to Dalia Abu
Hilal, Verena Maiberg and Josefin Koch for technical assistance. Christian LĂĽck of the TU Dresden kindly provided
the Sequence Types of the isolates
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Power in fragments? The politics of public participation in climate adaptation governance in Egypt
EMBARGOED (permanently)
This dissertation explores the politics of participation in climate adaptation in Egypt. As climate change and its impacts may imply radical policy shifts or costly investments, a global scholarly and practitioner narrative emphasises the pragmatic and normative necessity of participatory planning. But against that narrative is an absence of comparable scholarship attentive to the possibilities of and avenues for participatory adaptation processes in restrictive institutional settings. Through a multi-scalar case-study of Egypt, relying on qualitative and action-driven methodologies, the doctorate aims to improve the understanding of how participation may be conditioned by political regimes. It offers an antecedent empirical account on Egypt’s national climate policy planning efforts, and the ways in which public stakes are acknowledged – looking both at the actors involved in shaping those discourses and the networks they rely on. The dissertation also explores the technocratic visions of coastal adaptation enshrined in an international funded multi-million-dollar project, contrasting those against an experientially driven account of environmental change in Alexandria. The thesis argues that actors both within and outside official policy circles have the interest to manoeuvre around political structures that may appear to discourage wider engagement. Employing a conceptual framing focusing on spaces of informality and the opportunities afforded by ambiguity and policy fragmentation, the doctorate contends that the complexity of climate change may be opening opportunities for discursive influence on the decision-making process. In decoupling an exploration of avenues for participatory politics from a democratisation lens, an attentiveness instead to how power is configured in contingent moments can reveal that beyond presumptions of ossified exclusionary structures of governance are spaces of possibility that need to be bargained for. This study engages with climate change scholarship that seeks to situate and explore how adaptation is constituted by the political, contributing a case study from an underexplored region
Additional file 2 of The use of legal empowerment to improve access to quality health services: a scoping review
Additional file 2: Annex 2. Articles reviewed
Additional file 1 of The use of legal empowerment to improve access to quality health services: a scoping review
Additional file 1: Supplemental Table 1. Articles included in the review