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PLoS Neglected Tropical Diseases

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https://www.readbyqxmd.com/read/28448507/detecting-the-impact-of-temperature-on-transmission-of-zika-dengue-and-chikungunya-using-mechanistic-models
#1
Erin A Mordecai, Jeremy M Cohen, Michelle V Evans, Prithvi Gudapati, Leah R Johnson, Catherine A Lippi, Kerri Miazgowicz, Courtney C Murdock, Jason R Rohr, Sadie J Ryan, Van Savage, Marta S Shocket, Anna Stewart Ibarra, Matthew B Thomas, Daniel P Weikel
Recent epidemics of Zika, dengue, and chikungunya have heightened the need to understand the seasonal and geographic range of transmission by Aedes aegypti and Ae. albopictus mosquitoes. We use mechanistic transmission models to derive predictions for how the probability and magnitude of transmission for Zika, chikungunya, and dengue change with mean temperature, and we show that these predictions are well matched by human case data. Across all three viruses, models and human case data both show that transmission occurs between 18-34°C with maximal transmission occurring in a range from 26-29°C...
April 27, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28448489/determinants-of-severe-dehydration-from-diarrheal-disease-at-hospital-presentation-evidence-from-22-years-of-admissions-in-bangladesh
#2
Jason R Andrews, Daniel T Leung, Shahnawaz Ahmed, Mohammed Abdul Malek, Dilruba Ahmed, Yasmin Begum, Firdausi Qadri, Tahmeed Ahmed, Abu Syed Golam Faruque, Eric J Nelson
BACKGROUND: To take advantage of emerging opportunities to reduce morbidity and mortality from diarrheal disease, we need to better understand the determinants of life-threatening severe dehydration (SD) in resource-poor settings. METHODOLOGY/FINDINGS: We analyzed records of patients admitted with acute diarrheal disease over twenty-two years at the International Centre for Diarrhoeal Disease Research, Bangladesh (1993-2014). Patients presenting with and without SD were compared by multivariable logistic regression models, which included socio-demographic factors and pathogens isolated...
April 27, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28437465/serological-evidence-for-transmission-of-multiple-dengue-virus-serotypes-in-papua-new-guinea-and-west-papua-prior-to-1963
#3
Dagwin Luang-Suarkia, Timo Ernst, Michael P Alpers, Ralph Garruto, David Smith, Allison Imrie
Little is known about the natural history of dengue in Papua New Guinea (PNG). We assessed dengue virus (DENV)-specific neutralizing antibody profiles in serum samples collected from northern and southern coastal areas and the highland region of New Guinea between 1959 and 1963. Neutralizing antibodies were demonstrated in sera from the northern coast of New Guinea: from Sabron in Dutch New Guinea (now known as West Papua) and from four villages in East Sepik in what is now PNG. Previous monotypic infection with DENV-1, DENV-2, and DENV-4 was identified, with a predominance of anti-DENV-2 neutralizing antibody...
April 24, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28422970/the-gut-microbiota-as-a-modulator-of-innate-immunity-during-melioidosis
#4
Jacqueline M Lankelma, Emma Birnie, Tassili A F Weehuizen, Brendon P Scicluna, Clara Belzer, Riekelt H Houtkooper, Joris J T H Roelofs, Alex F de Vos, Tom van der Poll, Andries E Budding, W Joost Wiersinga
BACKGROUND: Melioidosis, caused by the Gram-negative bacterium Burkholderia pseudomallei, is an emerging cause of pneumonia-derived sepsis in the tropics. The gut microbiota supports local mucosal immunity and is increasingly recognized as a protective mediator in host defenses against systemic infection. Here, we aimed to characterize the composition and function of the intestinal microbiota during experimental melioidosis. METHODOLOGY/PRINCIPAL FINDINGS: C57BL/6 mice were infected intranasally with B...
April 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28388625/poor-performance-of-the-rapid-test-for-human-brucellosis-in-health-facilities-in-kenya
#5
William A de Glanville, Raquel Conde-Álvarez, Ignacio Moriyón, John Njeru, Ramón Díaz, Elizabeth A J Cook, Matilda Morin, Barend M de C Bronsvoort, Lian F Thomas, Samuel Kariuki, Eric M Fèvre
Human brucellosis is considered to be an important but typically under-diagnosed cause of febrile illness in many low and middle-income countries. In Kenya, and throughout East Africa, laboratory diagnosis for the disease is based primarily on the febrile antigen Brucella agglutination test (FBAT), yet few studies of the diagnostic accuracy of this test exist. Assessment of the performance of the FBAT is essential for its appropriate clinical use, as well as for evaluating surveillance data reported by public health systems...
April 7, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28448491/relevant-units-of-analysis-for-applied-and-basic-research-dealing-with-neglected-transmissible-diseases-the-predominant-clonal-evolution-model-of-pathogenic-microorganisms
#6
REVIEW
Michel Tibayrenc, Francisco J Ayala
The predominant clonal evolution (PCE) model seeks to formulate a common population genetics framework for all micropathogens (namely, parasitic protozoa, fungi and yeasts, bacteria, and viruses). It relies on a definition of clonality that is only based on population structure features (namely, strongly restrained genetic recombination). Its clear-cut properties make it of strong interest for applied and basic research, since it permits the definition of stable, clearly delimited units of analysis below the species level: clonal genotypes and discrete genetic subdivisions ("near-clades")...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28448490/the-value-of-daily-platelet-counts-for-predicting-dengue-shock-syndrome-results-from-a-prospective-observational-study-of-2301-vietnamese-children-with-dengue
#7
Phung Khanh Lam, Tran Van Ngoc, Truong Thi Thu Thuy, Nguyen Thi Hong Van, Tran Thi Nhu Thuy, Dong Thi Hoai Tam, Nguyen Minh Dung, Nguyen Thi Hanh Tien, Nguyen Tan Thanh Kieu, Cameron Simmons, Bridget Wills, Marcel Wolbers
BACKGROUND: Dengue is the most important mosquito-borne viral infection to affect humans. Although it usually manifests as a self-limited febrile illness, complications may occur as the fever subsides. A systemic vascular leak syndrome that sometimes progresses to life-threatening hypovolaemic shock is the most serious complication seen in children, typically accompanied by haemoconcentration and thrombocytopenia. Robust evidence on risk factors, especially features present early in the illness course, for progression to dengue shock syndrome (DSS) is lacking...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28448488/the-potential-economic-burden-of-zika-in-the-continental-united-states
#8
Bruce Y Lee, Jorge A Alfaro-Murillo, Alyssa S Parpia, Lindsey Asti, Patrick T Wedlock, Peter J Hotez, Alison P Galvani
BACKGROUND: As the Zika virus epidemic continues to spread internationally, countries such as the United States must determine how much to invest in prevention, control, and response. Fundamental to these decisions is quantifying the potential economic burden of Zika under different scenarios. METHODOLOGY/PRINCIPLE FINDINGS: To inform such decision making, our team developed a computational model to forecast the potential economic burden of Zika across six states in the US (Alabama, Florida, Georgia, Louisiana, Mississippi, and Texas) which are at greatest risk of Zika emergence, under a wide range of attack rates, scenarios and circumstances...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28448487/the-first-london-declaration-the-commonwealth-and-its-neglected-tropical-diseases
#9
EDITORIAL
Peter J Hotez, Ashish Damania, Aparna Barua, Jeffrey Stanaway
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28437474/improvement-of-a-tissue-maceration-technique-for-the-determination-of-placental-involvement-in-schistosomiasis
#10
Martha Charlotte Holtfreter, Heinrich Neubauer, Tanja Groten, Hosny El-Adawy, Jana Pastuschek, Joachim Richter, Dieter Häussinger, Mathias Wilhelm Pletz, Benjamin Thomas Schleenvoigt
Schistosomiasis in pregnancy may cause low birth weight, prematurity and stillbirth of the offspring. The placenta of pregnant women might be involved when schistosome ova are trapped in placental tissue. Standard histopathological methods only allow the examination of a limited amount of placental tissue and are therefore not sufficiently sensitive. Thus, placental schistosomiasis remains underdiagnosed and its role in contributing to schistosomiasis-associated pregnancy outcomes remains unclear. Here we investigated an advanced maceration method in order to recover a maximum number of schistosome ova from the placenta...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426814/progress-and-projections-in-the-program-to-eliminate-trachoma
#11
Paul M Emerson, Pamela J Hooper, Virginia Sarah
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426784/building-on-the-success-of-soil-transmitted-helminth-control-the-future-of-deworming
#12
Peter Mark Jourdan, Antonio Montresor, Judd L Walson
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426750/partnering-to-promote-research-where-it-matters
#13
Michael Eisenstein
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426735/ten-years-of-chagas-disease-research-looking-back-to-achievements-looking-ahead-to-challenges
#14
Eric Dumonteil, Claudia Herrera
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426723/a-decade-of-arboviral-activity-lessons-learned-from-the-trenches
#15
Ann M Powers, Stephen H Waterman
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426716/the-yin-and-yang-of-leishmaniasis-control
#16
Shaden Kamhawi
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426685/human-african-trypanosomiasis-control-achievements-and-challenges
#17
Serap Aksoy, Phillipe Buscher, Mike Lehane, Philippe Solano, Jan Van Den Abbeele
Sleeping sickness, also known as human African trypanosomiasis (HAT), is a neglected disease that impacts 70 million people living in 1.55 million km2 in sub-Saharan Africa. Since the beginning of the 20th century, there have been multiple HAT epidemics in sub-Saharan Africa, with the most recent epidemic in the 1990s resulting in about half a million HAT cases reported between 1990 and 2015. Here we review the status of HAT disease at the current time and the toolbox available for its control. We also highlight future opportunities under development towards novel or improved interventions...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426672/how-to-determine-if-a-model-is-right-for-neglected-tropical-disease-decision-making
#18
Bruce Y Lee, Sarah M Bartsch
Mathematical and computational modeling can transform decision making for neglected tropical diseases (NTDs) if the right model is used for the right question. Modeling can help better understand and address the complex systems involved in making decisions for NTD prevention and control. However, all models, modelers, and modeling are not the same. Thus, decision makers need to better understand if a particular model actually fits their needs. Here are a series of questions that a decision maker can ask when determining whether a model is right for him or her...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426668/neglected-tropical-diseases-a-proxy-for-equitable-development-and-shared-prosperity
#19
Dirk Engels
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426666/neglected-tropical-diseases-a-dfid-perspective
#20
Charlotte Watts
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
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