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Article ; Online: A Qualitative Analysis of the Perceptions of Stakeholders Involved in Vector Control and Vector-Borne Disease Research and Surveillance in Orinoquia, Colombia.

Jaramillo-Ramirez, Gloria Isabel / Tacugue, Maria Claudelle / Power, Grace M / Qureshi, Rimsha / Seelig, Frederik / Quintero, Juliana / Logan, James G / Jones, Robert T

Tropical medicine and infectious disease

2024 Volume 9, Issue 2

Abstract: Colombia has a tropical climate and environmental conditions that favour the circulation of most of the known vector-borne diseases (VBDs). Protocols have been established and implemented to address the threats of these diseases, but they are for country- ...

Abstract	Colombia has a tropical climate and environmental conditions that favour the circulation of most of the known vector-borne diseases (VBDs). Protocols have been established and implemented to address the threats of these diseases, but they are for country-wide use and do not take into consideration the nuances of the different environments of the country. Almost the entire population is vulnerable to infection with one or more VBD. This study aims to characterise the perceptions and experiences of stakeholders involved in vector control and VBDs in the Orinoquia region in Colombia. Two panel discussions, and 12 semi-structured interviews, were conducted. Experts from the Colombian National Health Institute (INS), health secretaries from Meta, Guaviare and Vichada Departments, academic researchers, and individuals from private vector control companies participated. All sessions were recorded, transcribed, and translated, and then subject to thematic analysis. Three major themes emerged: involvement, limitations, and recommendations. Results showed that participants are engaged in vector surveillance activities, education, and vector control research. Participants focused on problems of disjointed efforts towards VBD control between health secretaries and the health ministry, as well as societal issues, such as socioeconomic, cultural, and political issues, which became the rationale for the lack of vector control resources. Responses in the panel discussions and interviews overlapped in opinions, and suggested that vector control could be improved through better communication between vector control bodies, strengthened engagement with vulnerable communities, more collaborative actions, and a more balanced distribution of resources.
Language	English
Publishing date	2024-02-06
Publishing country	Switzerland
Document type	Journal Article
ISSN	2414-6366
ISSN (online)	2414-6366
DOI	10.3390/tropicalmed9020043
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Article ; Online: Non-endemic cases of lymphatic filariasis.

Jones, Robert T

Tropical medicine & international health : TM & IH

2014 Volume 19, Issue 11, Page(s) 1377–1383

Abstract: Objective: Several cases of lymphatic filariasis (LF) have been reported in non-endemic countries due to travellers, military personnel and expatriates spending time in and returning from endemic areas, as well as immigrants coming from these regions. ... ...

Abstract	Objective: Several cases of lymphatic filariasis (LF) have been reported in non-endemic countries due to travellers, military personnel and expatriates spending time in and returning from endemic areas, as well as immigrants coming from these regions. These cases are reviewed to assess the scale and context of non-endemic presentations and to consider the biological factors underlying their relative paucity. Methods: Cases reported in the English, French, Spanish and Portuguese literature during the last 30 years were examined through a search of the PubMed, ProMED-mail and TropNet resources. Results: The literature research revealed 11 cases of lymphatic filariasis being reported in non-endemic areas. The extent of further infections in recent migrants to non-endemic countries was also revealed through the published literature. Conclusions: The life-cycle requirements of Wuchereria and Brugia species limit the extent of transmission of LF outside of tropical regions. However, until elimination, programmes are successful in managing the disease, there remains a possibility of low rates of infection being reported in non-endemic areas, and increased international travel can only contribute to this phenomenon. Physicians need to be aware of the signs and symptoms of lymphatic filariasis, and infection should be considered in the differential diagnosis of people with a relevant travel history.
MeSH term(s)	Adult ; Aged ; Animals ; Child ; Disease Transmission, Infectious/statistics & numerical data ; Elephantiasis, Filarial/epidemiology ; Elephantiasis, Filarial/transmission ; Emigrants and Immigrants/statistics & numerical data ; Endemic Diseases/statistics & numerical data ; Female ; Humans ; Male ; Middle Aged ; Togo/epidemiology ; Travel ; Wuchereria bancrofti
Language	English
Publishing date	2014-11
Publishing country	England
Document type	Journal Article ; Review
ZDB-ID	1314080-2
ISSN	1365-3156 ; 1360-2276
ISSN (online)	1365-3156
ISSN	1360-2276
DOI	10.1111/tmi.12376
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Article ; Online: Two methods of prediction signatures.

Jones, Robert T / Theodorescu, Dan

Nature reviews. Urology

2018 Volume 15, Issue 6, Page(s) 340–342

Language	English
Publishing date	2018-03-26
Publishing country	England
Document type	Journal Article
ZDB-ID	2493737-X
ISSN	1759-4820 ; 1759-4812
ISSN (online)	1759-4820
ISSN	1759-4812
DOI	10.1038/s41585-018-0004-2
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Article ; Online: Novel control strategies for mosquito-borne diseases.

Jones, Robert T / Ant, Thomas H / Cameron, Mary M / Logan, James G

Philosophical transactions of the Royal Society of London. Series B, Biological sciences

2020 Volume 376, Issue 1818, Page(s) 20190802

Abstract: Mosquito-borne diseases are an increasing global health challenge, threatening over 40% of the world's population. Despite major advances in malaria control since 2000, recent progress has stalled. Additionally, the risk ... ...

Abstract	Mosquito-borne diseases are an increasing global health challenge, threatening over 40% of the world's population. Despite major advances in malaria control since 2000, recent progress has stalled. Additionally, the risk of
MeSH term(s)	Animals ; Communicable Disease Control/instrumentation ; Culicidae ; Mosquito Control/instrumentation ; Mosquito Control/methods ; Mosquito Vectors ; Vector Borne Diseases/prevention & control
Language	English
Publishing date	2020-12-28
Publishing country	England
Document type	Introductory Journal Article
ZDB-ID	208382-6
ISSN	1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
ISSN (online)	1471-2970
ISSN	0080-4622 ; 0264-3839 ; 0962-8436
DOI	10.1098/rstb.2019.0802
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Article ; Online: Vector control strategies in Brazil: a qualitative investigation into community knowledge, attitudes and perceptions following the 2015-2016 Zika virus epidemic.

Bancroft, Dani / Power, Grace M / Jones, Robert T / Massad, Eduardo / Iriat, Jorge Bernstein / Preet, Raman / Kinsman, John / Logan, James G

BMJ open

2022 Volume 12, Issue 1, Page(s) e050991

Abstract: Objective: The World Health Organization declared a Public Health Emergency of International Concern following the rapid emergence of neonatal microcephaly in Brazil during the 2015-2016 Zika virus (ZIKV) epidemic. In response, a national campaign ... ...

Abstract	Objective: The World Health Organization declared a Public Health Emergency of International Concern following the rapid emergence of neonatal microcephaly in Brazil during the 2015-2016 Zika virus (ZIKV) epidemic. In response, a national campaign sought to control Design: In 2017, the Zika Preparedness Latin America Network (ZikaPLAN) conducted a qualitative study to understand individual and community level experiences of ZIKV and other mosquito-borne disease outbreaks. Presented here is a thematic analysis of 33 transcripts from community focus groups and semistructured interviews, applying the Health Belief Model (HBM) to elaborate knowledge, attitudes and perceptions of ZIKV and vector control strategies. Participants: 120 purposively sampled adults of approximate reproductive age (18-45); 103 women participated in focus groups and 17 men in semistructured interviews. Setting: Two sociopolitically and epidemiologically distinct cities in Brazil: Jundiaí (57 km north of São Paolo) and Salvador (Bahia state capital). Results: Four key and 12 major themes emerged from the analysis: (1) knowledge and cues to action; (2) attitudes and normative beliefs (perceived threat, barriers, benefits and self-efficacy); (3) behaviour change (household prevention and community participation); and (4) community preferences for novel repellent tools, vector control strategies and ZIKV messaging. Conclusions: Common barriers to repellent adherence were accessibility, appearance and effectiveness. A strong case is made for the transferability of the HBM to inform epidemic preparedness for mosquito-borne disease outbreaks at the community level. Nationally, a health campaign targeting men is recommended, in addition to local mobilisation of funding to strengthen surveillance, risk communication and community engagement.
MeSH term(s)	Adult ; Animals ; Brazil/epidemiology ; Female ; Health Knowledge, Attitudes, Practice ; Humans ; Infant, Newborn ; Male ; Mosquito Vectors ; Zika Virus ; Zika Virus Infection/epidemiology ; Zika Virus Infection/prevention & control
Language	English
Publishing date	2022-01-31
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2599832-8
ISSN	2044-6055 ; 2044-6055
ISSN (online)	2044-6055
ISSN	2044-6055
DOI	10.1136/bmjopen-2021-050991
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Article ; Online: Genomic surveillance of Anopheles mosquitoes on the Bijagós Archipelago using custom targeted amplicon sequencing identifies mutations associated with insecticide resistance.

Moss, Sophie / Pretorius, Elizabeth / Ceesay, Sainey / Hutchins, Harry / da Silva, Eunice Teixeira / Ndiath, Mamadou Ousmane / Jones, Robert T / Vasileva, Hristina / Phelan, Jody / Acford-Palmer, Holly / Collins, Emma / Rodrigues, Amabelia / Krishna, Sanjeev / Clark, Taane G / Last, Anna / Campino, Susana

Parasites & vectors

2024 Volume 17, Issue 1, Page(s) 10

Abstract: Background: Insecticide resistance is reducing the efficacy of vector control interventions, consequently threatening efforts to control vector-borne diseases, including malaria. Investigating the prevalence of molecular markers of resistance is a ... ...

Abstract	Background: Insecticide resistance is reducing the efficacy of vector control interventions, consequently threatening efforts to control vector-borne diseases, including malaria. Investigating the prevalence of molecular markers of resistance is a useful tool for monitoring the spread of insecticide resistance in disease vectors. The Bijagós Archipelago (Bijagós) in Guinea-Bissau is a region of stable malaria transmission where insecticide-treated nets are the mainstay for malaria control. However, the prevalence of molecular markers of insecticide resistance in malaria vectors is not well understood. Methods: A total of 214 Anopheles mosquitoes were analysed from 13 islands across the Bijagós. These mosquitoes were collected using CDC light traps in November 2019, during the peak malaria transmission season. High-throughput multiplex amplicon sequencing was used to investigate the prevalence of 17 different molecular markers associated with insecticide resistance in four genes: vgsc, rdl, ace1 and gste2. Results: Of the 17 screened mutations, four were identified in mosquitoes from the Bijagós: vgsc L995F (12.2%), N1570Y (6.2%) and A1746S (0.7%) and rdl A269G (1.1%). This study is the first to report the L995F knock-down resistance (kdr)-west allele in Anopheles melas on the Archipelago. An additional eight non-synonymous single-nucleotide polymorphisms were identified across the four genes which have not been described previously. The prevalences of the vgsc L995F and N1570Y mutations were higher on Bubaque Island than on the other islands in this study; Bubaque is the most populous island in the archipelago, with the greatest population mobility and connection to continental Guinea-Bissau. Conclusions: This study provides the first surveillance data for genetic markers present in malaria vectors from islands across the Bijagós Archipelago. Overall prevalence of insecticide resistance mutations was found to be low. However, the identification of the vgsc L995F and N1570Y mutations associated with pyrethroid resistance warrants further monitoring. This is particularly important as the mainstay of malaria control on the islands is the use of pyrethroid insecticide-treated nets.
MeSH term(s)	Animals ; Anopheles/genetics ; Insecticide Resistance/genetics ; Insecticides/pharmacology ; Mosquito Vectors/genetics ; Pyrethrins/pharmacology ; Genomics ; Malaria ; Mutation
Chemical Substances	Insecticides ; Pyrethrins
Language	English
Publishing date	2024-01-04
Publishing country	England
Document type	Journal Article
ZDB-ID	2409480-8
ISSN	1756-3305 ; 1756-3305
ISSN (online)	1756-3305
ISSN	1756-3305
DOI	10.1186/s13071-023-06085-5
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Article ; Online: Validation of a method for the dry preservation and rehydration of Anopheles gambiae sensu lato for parity analysis to assess the impact of vector control measures in the field.

Pretorius, Elizabeth / Kristan, Mojca / Bradley, John / da Silva, Eunice Teixeira / Hutchins, Harry / Barri, Fatucha / Cassama, Ansumane / Ceesay, Sainey / Ndiath, Mamadou Ousmane / Rodrigues, Amabelia / Logan, James G / Last, Anna / Jones, Robert T

Parasites & vectors

2023 Volume 16, Issue 1, Page(s) 236

Abstract: Background: As the control of malaria remains heavily dependent on vector management interventions, it is important to understand the impact of these on mosquito populations. Age-grading is a valuable tool for this; however, logistical challenges in ... ...

Abstract	Background: As the control of malaria remains heavily dependent on vector management interventions, it is important to understand the impact of these on mosquito populations. Age-grading is a valuable tool for this; however, logistical challenges in remote, resource-poor areas make current methodologies difficult to incorporate into clinical trials and routine surveillance. Our aim was to validate a methodology that could be easily implemented in such settings. Using dried mosquito specimens instead of freshly killed ones, we validated the commonly used ovarian tracheation technique for assessing population age structure. Methods: Laboratory-reared Anopheles coluzzii mosquitoes with known parity status were dry preserved in silica gel for up to 12 weeks and rehydrated prior to parity assessment. The results were compared to parity results for freshly killed mosquitoes from the same colony. Preserved, field-caught Anopheles gambiae sensu lato (s.l.) from Guinea-Bissau were assessed by three different assessors blinded to each other's scores. An overall index of agreement was calculated using inter-rater reliability of all assessor pairings. The impact of preservation time was investigated using a one-way ANOVA to look for differences in assessor agreement over three time periods. Results: The parity status was correctly identified for 90% of dry preserved and rehydrated insectary-reared An. coluzzii and for 98% of freshly killed insectary-reared An. coluzzii. The inter-rater reliability was highest (0.94) for freshly killed An. coluzzii. The results for all time points showed excellent strength of agreement between assessors. For field-caught An. gambiae s.l., the overall index of agreement between all three assessors was 0.86 (95% confidence interval 0.78-0.93), indicating almost perfect agreement. There was no significant difference between assessor agreement between time frames. Conclusions: Dry preserving and rehydrating Anopheles mosquitoes provides an alternative to using freshly killed mosquitoes to assess the efficacy of a control intervention in remote settings where it is logistically difficult to dissect fresh specimens. This method also provides the flexibility required for parity assessment to be done on larger scales over bigger areas.
MeSH term(s)	Animals ; Anopheles ; Fluid Therapy ; Mosquito Vectors ; Reproducibility of Results
Language	English
Publishing date	2023-07-15
Publishing country	England
Document type	Journal Article
ZDB-ID	2409480-8
ISSN	1756-3305 ; 1756-3305
ISSN (online)	1756-3305
ISSN	1756-3305
DOI	10.1186/s13071-023-05866-2
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Article ; Online: Rescaling metal molybdate nanostructures with biopolymer for energy storage having high capacitance with robust cycle stability.

Minakshi, Manickam / Barmi, Maryam J / Jones, Robert T

Dalton transactions (Cambridge, England : 2003)

2017 Volume 46, Issue 11, Page(s) 3588–3600

Abstract: Hybrid capacitors can replace or complement batteries, while storing energy through ion adsorption and fast surface redox reactions. There is a growing demand in developing nanostructured materials as electrodes for hybrid systems that can enhance the ... ...

Abstract	Hybrid capacitors can replace or complement batteries, while storing energy through ion adsorption and fast surface redox reactions. There is a growing demand in developing nanostructured materials as electrodes for hybrid systems that can enhance the specific capacitance by ion desolvation in the nanopores. Here, we demonstrate that rescaling the pore diameter with the aid of biopolymer at an optimal level during the synthesis of metal molybdate leads to high capacitance 124 F g
Language	English
Publishing date	2017-03-14
Publishing country	England
Document type	Journal Article
ZDB-ID	1472887-4
ISSN	1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
ISSN (online)	1477-9234 ; 1364-5447
ISSN	0300-9246 ; 1477-9226
DOI	10.1039/c7dt00139h
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Article ; Online: The Threat of Vector-Borne Diseases in Sierra Leone.

Jones, Robert T / Tytheridge, Scott J / Smith, Samuel J / Levine, Rebecca S / Hodges, Mary H / Ansumana, Rashid / Wulff, Sophie / Whitworth, Jimmy / Logan, James G

The American journal of tropical medicine and hygiene

2023 Volume 109, Issue 1, Page(s) 10–21

Abstract: Sierra Leone is vulnerable to a wide range of vector-borne diseases transmitted by mosquitoes, tsetse flies, black flies, and other vectors. Malaria, lymphatic filariasis, and onchocerciasis have posed the greatest threat and have received the most ... ...

Abstract	Sierra Leone is vulnerable to a wide range of vector-borne diseases transmitted by mosquitoes, tsetse flies, black flies, and other vectors. Malaria, lymphatic filariasis, and onchocerciasis have posed the greatest threat and have received the most attention in terms of vector control and capacity for diagnosis. However, malaria infection rates remain high, and there is evidence of circulation of other vector-borne diseases, such as chikungunya and dengue, which may go undiagnosed and unreported. The limited understanding of the prevalence and transmission of these diseases restricts the capacity for predicting outbreaks, and impedes the planning of appropriate responses. We review the available literature and gather expert opinions from those working in the country to report on the status of vector-borne disease transmission and control in Sierra Leone, and present an assessment of the threats of these diseases. Our discussions highlight an absence of entomological testing for disease agents and the need for more investment in surveillance and capacity strengthening.
MeSH term(s)	Animals ; Sierra Leone/epidemiology ; Mosquito Vectors ; Culicidae ; Elephantiasis, Filarial/epidemiology ; Malaria/epidemiology ; Malaria/prevention & control
Language	English
Publishing date	2023-06-05
Publishing country	United States
Document type	Review ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2942-7
ISSN	1476-1645 ; 0002-9637
ISSN (online)	1476-1645
ISSN	0002-9637
DOI	10.4269/ajtmh.22-0495
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Article ; Online: Differential attraction in mosquito-human interactions and implications for disease control.

Martinez, Julien / Showering, Alicia / Oke, Catherine / Jones, Robert T / Logan, James G

Philosophical transactions of the Royal Society of London. Series B, Biological sciences

2020 Volume 376, Issue 1818, Page(s) 20190811

Abstract: Mosquito-borne diseases are a major burden on human health worldwide and their eradication through vector control methods remains challenging. In particular, the success of vector control interventions for targeting diseases such as malaria is under ... ...

Abstract	Mosquito-borne diseases are a major burden on human health worldwide and their eradication through vector control methods remains challenging. In particular, the success of vector control interventions for targeting diseases such as malaria is under threat, in part due to the evolution of insecticide resistance, while for other diseases effective control solutions are still lacking. The rate at which mosquitoes encounter and bite humans is a key determinant of their capacity for disease transmission. Future progress is strongly reliant on improving our understanding of the mechanisms leading to a mosquito bite. Here, we review the biological factors known to influence the attractiveness of mosquitoes to humans, such as body odour, the skin microbiome, genetics and infection by parasites. We identify the knowledge gaps around the relative contribution of each factor, and the potential links between them, as well as the role of natural selection in shaping vector-host-parasite interactions. Finally, we argue that addressing these questions will contribute to improving current tools and the development of novel interventions for the future. This article is part of the theme issue 'Novel control strategies for mosquito-borne diseases'.
MeSH term(s)	Animals ; Communicable Disease Control/instrumentation ; Culicidae/physiology ; Humans ; Mosquito Control/instrumentation ; Mosquito Control/methods ; Mosquito Vectors/physiology ; Vector Borne Diseases/prevention & control
Language	English
Publishing date	2020-12-28
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't ; Review
ZDB-ID	208382-6
ISSN	1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
ISSN (online)	1471-2970
ISSN	0080-4622 ; 0264-3839 ; 0962-8436
DOI	10.1098/rstb.2019.0811
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