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Understanding the epidemiology, clinical characteristics, knowledge and barriers to treatment and prevention of malaria among returning international laborers in northern Vietnam: a mixed-methods study

Edgel, Kimberly A. ; Canavati, Sara ; Le, Hoi Thi ; [et al.]

Springer Science and Business Media LLC ; 2022

In: BMC Infectious Diseases Vol. 22, No. 1 ( 2022-12)

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In: BMC Infectious Diseases, Springer Science and Business Media LLC, Vol. 22, No. 1 ( 2022-12)

Abstract: With the decline in local malaria transmission in Vietnam as a result of the National Malaria Control Program (NMCP) elimination activities, a greater focus on the importation and potential reintroduction of transmission are essential to support malaria elimination objectives. Methods We conducted a multi-method assessment of the demographics, epidemiology, and clinical characteristics of imported malaria among international laborers returning from African or Southeast Asian countries to Vietnam. Firstly, we conducted a retrospective review of hospital records of patients from January 2014 to December 2016. Secondly, we conducted a mixed-methods prospective study for malaria patients admitted to the study sites from January 2017 to May 2018 using a structured survey with blood sample collection for PCR analysis and in-depth interviews. Data triangulation of the qualitative and quantitative data was used during analysis. Results International laborers were young (median age 33.0 years IQR 28.0–39.5 years), predominantly male (92%) adults returning mostly from the African continent (84%) who stayed abroad for prolonged periods (median time 13.5 months; IQR 6.0–331.5 months) and were involved in occupations that exposed them to a higher risk of malaria infection. Epidemiological trends were also similar amongst study strands and included the importation of Plasmodium falciparum primarily from African countries and P. vivax from Southeast Asian countries. Of 11 P. malariae and P. ovale infections across two study strands, 10 were imported from the African continent. Participants in the qualitative arm demonstrated limited knowledge about malaria prior to travelling abroad, but reported knowledge transformation through personal or co-worker’s experience while abroad. Interestingly, those who had a greater understanding of the severity of malaria presented to the hospital for treatment sooner than those who did not; median of 3 days (IQR 2.0–7.0 days) versus 5 days (IQR 4.0–9.5 days) respectively. Conclusion To address the challenges to malaria elimination raised by a growing Vietnamese international labor force, consideration should be given to appropriately targeted interventions and malaria prevention strategies that cover key stages of migration including pre-departure education and awareness, in-country prevention and prophylaxis, and malaria screening upon return.

Type of Medium: Online Resource

ISSN: 1471-2334

URL: Article

DOI: 10.1186/s12879-022-07322-5

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2022

detail.hit.zdb_id: 2041550-3

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Results from a malaria indicator survey highlight the importance of routine data capture in high-risk forest and farm transmission sites in Vietnam to tailor location-specific malaria elimination interventions

Ngo, Thang Duc ; Canavati, Sara E. ; Dung, Dang Viet ; [et al.]

Public Library of Science (PLoS) ; 2021

In: PLOS ONE Vol. 16, No. 4 ( 2021-4-16), p. e0250045-

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In: PLOS ONE, Public Library of Science (PLoS), Vol. 16, No. 4 ( 2021-4-16), p. e0250045-

Abstract: In-line with the World Health Organization’s (WHO) Global Technical Strategy for Malaria (2016–2030), Vietnam is striving to eliminate malaria by 2030. Targeting appropriate interventions in high-risk populations such as forest and forest-fringe communities is a critical component of malaria elimination efforts in Vietnam. In 2016, a household-level malaria indicator survey was conducted in Phu Yen Province, Vietnam with the aim of assessing the knowledge, behaviors and associated risks of malaria infection among priority mobile and migrant populations (MMPs) working and sleeping in forests and on farms. A total of 4211 people were included in the survey, comprised of 1074 heads of households and 3137 associated household members. Of the 1074 head-of-household respondents, 472 slept in a forest, 92 slept on a farm, 132 slept in both forests and farms, and 378 slept at their villages within the last 12 months. Age, literacy, and occupation were significantly different among those who slept in a forest versus on a farm. Of 301 respondents who answered questions about malaria risk factors at sleeping sites, 35% were somewhat aware of malaria prevention practices, but only 4% could recall at least four malaria prevention messages. Among the same group of 301 respondents, only 29% used nets and only 11% used treated nets. Ownership and use of nets among forest-goers was significantly lower than those who slept on a farm or in their village. Huts without walls were significantly prominent forest sleeping site locations (POR = 10.3; 95% CI 4.67–22.7). All respondents who slept in a forest requested standby malaria drugs and one-third of them self-treated without blood testing. Results from this study highlight the importance of capturing relevant location-specific data among priority populations such as remote forest and farm going mobile and migrant populations in Vietnam. Data regarding behavioral practices, knowledge, preventative measures, and intervention coverage at remote-area transmission sites must be routinely captured to effectively monitor progress and refine targeted intervention strategies accordingly.

Type of Medium: Online Resource

ISSN: 1932-6203

URL: Article

DOI: 10.1371/journal.pone.0250045

DOI: 10.1371/journal.pone.0250045.g001

DOI: 10.1371/journal.pone.0250045.t001

DOI: 10.1371/journal.pone.0250045.t002

DOI: 10.1371/journal.pone.0250045.t003

DOI: 10.1371/journal.pone.0250045.t004

DOI: 10.1371/journal.pone.0250045.t005

DOI: 10.1371/journal.pone.0250045.t006

DOI: 10.1371/journal.pone.0250045.s001

Language: English

Publisher: Public Library of Science (PLoS)

Publication Date: 2021

detail.hit.zdb_id: 2267670-3

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Maternal intramuscular dexamethasone versus betamethasone before preterm birth (ASTEROID): a multicentre, double-blind, randomised controlled trial

Crowther, Caroline A ; Ashwood, Pat ; Andersen, Chad C ; [et al.]

Elsevier BV ; 2019

In: The Lancet Child & Adolescent Health Vol. 3, No. 11 ( 2019-11), p. 769-780

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In: The Lancet Child & Adolescent Health, Elsevier BV, Vol. 3, No. 11 ( 2019-11), p. 769-780

Type of Medium: Online Resource

ISSN: 2352-4642

URL: Article

DOI: 10.1016/S2352-4642(19)30292-5

Language: English

Publisher: Elsevier BV

Publication Date: 2019

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Simultaneous Femtosecond X-ray Spectroscopy and Diffraction of Photosystem II at Room Temperature

Kern, Jan ; Alonso-Mori, Roberto ; Tran, Rosalie ; [et al.]

American Association for the Advancement of Science (AAAS) ; 2013

In: Science Vol. 340, No. 6131 ( 2013-04-26), p. 491-495

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In: Science, American Association for the Advancement of Science (AAAS), Vol. 340, No. 6131 ( 2013-04-26), p. 491-495

Abstract: Intense femtosecond x-ray pulses produced at the Linac Coherent Light Source (LCLS) were used for simultaneous x-ray diffraction (XRD) and x-ray emission spectroscopy (XES) of microcrystals of photosystem II (PS II) at room temperature. This method probes the overall protein structure and the electronic structure of the Mn 4 CaO 5 cluster in the oxygen-evolving complex of PS II. XRD data are presented from both the dark state (S 1 ) and the first illuminated state (S 2 ) of PS II. Our simultaneous XRD-XES study shows that the PS II crystals are intact during our measurements at the LCLS, not only with respect to the structure of PS II, but also with regard to the electronic structure of the highly radiation-sensitive Mn 4 CaO 5 cluster, opening new directions for future dynamics studies.

Type of Medium: Online Resource

ISSN: 0036-8075 , 1095-9203

URL: Article

DOI: 10.1126/science.1234273

RVK:

TA 1000

RVK:

WA 15000

Language: English

Publisher: American Association for the Advancement of Science (AAAS)

Publication Date: 2013

detail.hit.zdb_id: 128410-1

detail.hit.zdb_id: 2066996-3

detail.hit.zdb_id: 2060783-0

SSG: 11

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The Mn 4 Ca photosynthetic water-oxidation catalyst studied by simultaneous X-ray spectroscopy and crystallography using an X-ray free-electron laser

Tran, Rosalie ; Kern, Jan ; Hattne, Johan ; [et al.]

The Royal Society ; 2014

In: Philosophical Transactions of the Royal Society B: Biological Sciences Vol. 369, No. 1647 ( 2014-07-17), p. 20130324-

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In: Philosophical Transactions of the Royal Society B: Biological Sciences, The Royal Society, Vol. 369, No. 1647 ( 2014-07-17), p. 20130324-

Abstract: The structure of photosystem II and the catalytic intermediate states of the Mn 4 CaO 5 cluster involved in water oxidation have been studied intensively over the past several years. An understanding of the sequential chemistry of light absorption and the mechanism of water oxidation, however, requires a new approach beyond the conventional steady-state crystallography and X-ray spectroscopy at cryogenic temperatures. In this report, we present the preliminary progress using an X-ray free-electron laser to determine simultaneously the light-induced protein dynamics via crystallography and the local chemistry that occurs at the catalytic centre using X-ray spectroscopy under functional conditions at room temperature.

Type of Medium: Online Resource

ISSN: 0962-8436 , 1471-2970

URL: Article

DOI: 10.1098/rstb.2013.0324

RVK:

WA 15000

Language: English

Publisher: The Royal Society

Publication Date: 2014

detail.hit.zdb_id: 1462620-2

SSG: 12

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Role of oxido incorporation and ligand lability in expanding redox accessibility of structurally related Mn4 clusters

Kanady, Jacob S. ; Tran, Rosalie ; Stull, Jamie A. ; [et al.]

Royal Society of Chemistry (RSC) ; 2013

In: Chemical Science Vol. 4, No. 10 ( 2013), p. 3986-

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In: Chemical Science, Royal Society of Chemistry (RSC), Vol. 4, No. 10 ( 2013), p. 3986-

Type of Medium: Online Resource

ISSN: 2041-6520 , 2041-6539

URL: Article

DOI: 10.1039/c3sc51406d

Language: English

Publisher: Royal Society of Chemistry (RSC)

Publication Date: 2013

detail.hit.zdb_id: 2559110-1

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Long-Term Trends (1980–2017) in the N -Pact Factor of Journals in Personality Psychology and Individual Differences Research

Kossmeier, Michael ; Vilsmeier, Johannes ; Dittrich, Rosalie ; [et al.]

Hogrefe Publishing Group ; 2019

In: Zeitschrift für Psychologie Vol. 227, No. 4 ( 2019-10), p. 293-302

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In: Zeitschrift für Psychologie, Hogrefe Publishing Group, Vol. 227, No. 4 ( 2019-10), p. 293-302

Abstract: Abstract. Recent metascience investigations of the N-pact factor (NF; median sample size of studies published in a journal) have revealed NFs of merely about 100 in fields like social, sport, and exercise psychology. Journal NF has also been shown to correlate negatively with journal impact factors (JIF), implying that smaller studies appear in more prestigious journals. In this first long-term and largest NF analysis to date (3,699 articles coded), annual NFs of two personality psychology journals were tracked over 38 years since their inception in 1980. Overall NF was about 190, gradually increased over time, and within-journal NF-JIF correlations were positive. Online samples and articles featuring supplemental files presented larger NFs, whereas those involving student samples had smaller ones. Sample size distributions showed multimodality, and surplusses of even-numbered sample sizes and of those just beyond 100 were evident. An NF statement, accompanying authors’ submitted papers, is suggested.

Type of Medium: Online Resource

ISSN: 2190-8370 , 2151-2604

URL: Article

DOI: 10.1027/2151-2604/a000384

RVK:

CL 1000

Language: English

Publisher: Hogrefe Publishing Group

Publication Date: 2019

detail.hit.zdb_id: 200122-6

detail.hit.zdb_id: 2090996-2

SSG: 5,2

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Tuning the Coordination Structure of CuNC Single Atom Catalysts for Simultaneous Electrochemical Reduction of CO 2 and NO 3 – to Urea

Leverett, Josh ; Tran‐Phu, Thanh ; Yuwono, Jodie A. ; [et al.]

Wiley ; 2022

In: Advanced Energy Materials Vol. 12, No. 32 ( 2022-08)

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In: Advanced Energy Materials, Wiley, Vol. 12, No. 32 ( 2022-08)

Abstract: Closing both the carbon and nitrogen loops is a critical venture to support the establishment of the circular, net‐zero carbon economy. Although single atom catalysts (SACs) have gained interest for the electrochemical reduction reactions of both carbon dioxide (CO 2 RR) and nitrate (NO 3 RR), the structure–activity relationship for Cu SAC coordination for these reactions remains unclear and should be explored such that a fundamental understanding is developed. To this end, the role of the Cu coordination structure is investigated in dictating the activity and selectivity for the CO 2 RR and NO 3 RR. In agreement with the density functional theory calculations, it is revealed that Cu‐N 4 sites exhibit higher intrinsic activity toward the CO 2 RR, whilst both Cu‐N 4 and Cu‐N 4− x ‐C x sites are active toward the NO 3 RR. Leveraging these findings, CO 2 RR and NO 3 RR are coupled for the formation of urea on Cu SACs, revealing the importance of *COOH binding as a critical parameter determining the catalytic activity for urea production. To the best of the authors’ knowledge, this is the first report employing SACs for electrochemical urea synthesis from CO 2 RR and NO 3 RR, which achieves a Faradaic efficiency of 28% for urea production with a current density of − 27 mA cm –2 at − 0.9 V versus the reversible hydrogen electrode.

Type of Medium: Online Resource

ISSN: 1614-6832 , 1614-6840

URL: Issue

URL: Article

DOI: 10.1002/aenm.v12.32

DOI: 10.1002/aenm.202201500

Language: English

Publisher: Wiley

Publication Date: 2022

detail.hit.zdb_id: 2594556-7

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Resonance Raman Spectra of an O2-Binding H-NOX Domain Reveal Heme Relaxation upon Mutation

Tran, Rosalie ; Boon, Elizabeth M. ; Marletta, Michael A. ; [et al.]

Elsevier BV ; 2010

In: Biophysical Journal Vol. 98, No. 3 ( 2010-01), p. 642a-

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In: Biophysical Journal, Elsevier BV, Vol. 98, No. 3 ( 2010-01), p. 642a-

Type of Medium: Online Resource

ISSN: 0006-3495

URL: Article

DOI: 10.1016/j.bpj.2009.12.3517

Language: English

Publisher: Elsevier BV

Publication Date: 2010

detail.hit.zdb_id: 1477214-0

SSG: 12

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Understanding the Role of (W, Mo, Sb) Dopants in the Catalyst Evolution and Activity Enhancement of Co 3 O 4 during Water Electrolysis via In Situ Spectroelectrochemical Techniques

Tran‐Phu, Thanh ; Chatti, Manjunath ; Leverett, Joshua ; [et al.]

Wiley ; 2023

In: Small Vol. 19, No. 25 ( 2023-06)

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In: Small, Wiley, Vol. 19, No. 25 ( 2023-06)

Abstract: Unlocking the potential of the hydrogen economy is dependent on achieving green hydrogen (H 2 ) production at competitive costs. Engineering highly active and durable catalysts for both oxygen and hydrogen evolution reactions (OER and HER) from earth‐abundant elements is key to decreasing costs of electrolysis, a carbon‐free route for H 2 production. Here, a scalable strategy to prepare doped cobalt oxide (Co 3 O 4 ) electrocatalysts with ultralow loading, disclosing the role of tungsten (W), molybdenum (Mo), and antimony (Sb) dopants in enhancing OER/HER activity in alkaline conditions, is reported. In situ Raman and X‐ray absorption spectroscopies, and electrochemical measurements demonstrate that the dopants do not alter the reaction mechanisms but increase the bulk conductivity and density of redox active sites. As a result, the W‐doped Co 3 O 4 electrode requires ≈390 and ≈560 mV overpotentials to reach ±10 and ±100 mA cm −2 for OER and HER, respectively, over long‐term electrolysis. Furthermore, optimal Mo‐doping leads to the highest OER and HER activities of 8524 and 634 A g −1 at overpotentials of 0.67 and 0.45 V, respectively. These novel insights provide directions for the effective engineering of Co 3 O 4 as a low‐cost material for green hydrogen electrocatalysis at large scales.

Type of Medium: Online Resource

ISSN: 1613-6810 , 1613-6829

URL: Issue

URL: Article

DOI: 10.1002/smll.v19.25

DOI: 10.1002/smll.202208074

Language: English

Publisher: Wiley

Publication Date: 2023

detail.hit.zdb_id: 2168935-0

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