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Spatial epidemiology

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https://www.readbyqxmd.com/read/28077647/sensitive-next-generation-sequencing-method-reveals-deep-genetic-diversity-of-hiv-1-in-the-democratic-republic-of-the-congo
#1
M A Rodgers, E Wilkerson, A Vallari, C McArthur, L Sthreshley, C A Brennan, G Cloherty, T de Oliveira
: As the epidemiological epicentre of the human immunodeficiency virus (HIV) pandemic, the Democratic Republic of the Congo (DRC) is a reservoir of circulating HIV strains exhibiting high levels of diversity and recombination. In this study, we characterized HIV specimens collected in two rural areas of the DRC between 2001 and 2003 to identify rare strains of HIV. The env gp41 region was sequenced and characterized for 172 HIV-positive specimens. The env sequences were predominantly subtype A (43...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28077180/understanding-transmissibility-patterns-of-chagas-disease-through-complex-vector-host-networks
#2
Laura Rengifo-Correa, Christopher R Stephens, Juan J Morrone, Juan Luis Téllez-Rendón, Constantino González-Salazar
Chagas disease is one of the most important vector-borne zoonotic diseases in Latin America. Control strategies could be improved if transmissibility patterns of its aetiologic agent, Trypanosoma cruzi, were better understood. To understand transmissibility patterns of Chagas disease in Mexico, we inferred potential vectors and hosts of T. cruzi from geographic distributions of nine species of Triatominae and 396 wild mammal species, respectively. The most probable vectors and hosts of T. cruzi were represented in a Complex Inference Network, from which we formulated a predictive model and several associated hypotheses about the ecological epidemiology of Chagas disease...
January 12, 2017: Parasitology
https://www.readbyqxmd.com/read/28073552/ciguatera-fish-poisoning-incidence-health-costs-and-risk-perception-on-moorea-island-society-archipelago-french-polynesia
#3
Ewen Morin, Clémence Gatti, Tamatoa Bambridge, Mireille Chinain
Ciguatera Fish Poisoning (CFP) is a non-bacterial seafood poisoning well characterized in the remote archipelagos of French Polynesia, yet poorly documented in the Society archipelago, most notably on Moorea, the second most populated island in French Polynesia, which counts a high proportion of fishermen fishing on a regular basis. To address this knowledge gap, a holistic study of the ciguatera issue was conducted on Moorea. First, ciguatera risk was analysed in terms of incidence rate, fish species most commonly involved and risk stratification in Moorea lagoon based on 2007-2013 epidemiological data...
December 2016: Harmful Algae
https://www.readbyqxmd.com/read/28073344/multidrug-resistant-tuberculosis-mdr-tb-disease-burden-in-china-a-systematic-review-and-spatio-temporal-analysis
#4
Peipei Ding, Xiaowen Li, Zhongwei Jia, Zuhong Lu
BACKGROUND: Surveillance data on the proportion of incident TB cases with MDR was limited and there is no systematic study of MDR-TB in China to date. Our aim was to estimate MDR-TB disease burden in 2012 and change trends during 2003-2012 using spatio-temporal systematic analysis. METHODS: We systematically searched Chinese and English databases for primary articles and reviews that contain MDR-TB survey data about China during the period of 2003-2012. We estimated the proportion of incident TB cases with MDR in cities which had no data to report in 2012 by Kriging spatial interpolation analysis...
January 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28068339/effect-of-climatic-factors-and-population-density-on-the-distribution-of-dengue-in-sri-lanka-a-gis-based-evaluation-for-prediction-of-outbreaks
#5
Pdnn Sirisena, Faseeha Noordeen, Harithra Kurukulasuriya, Thanuja Alar Romesh, LakKumar Fernando
Dengue is one of the major hurdles to the public health in Sri Lanka, causing high morbidity and mortality. The present study focuses on the use of geographical information systems (GIS) to map and evaluate the spatial and temporal distribution of dengue in Sri Lanka from 2009 to 2014 and to elucidate the association of climatic factors with dengue incidence. Epidemiological, population and meteorological data were collected from the Epidemiology Unit, Department of Census and Statistics and the Department of Meteorology of Sri Lanka...
2017: PloS One
https://www.readbyqxmd.com/read/28067940/geographical-and-epidemiological-analysis-of-oncological-incidence-in-paediatric-and-adolescent-ages-in-a-municipality-of-north-western-italy-vercelli-years-2002-2009
#6
C Salerno, P Berchialla, L A Palin, E Barasolo, P G Fossale, P Marciani
INTRODUCTION: This study of the geographical incidence on the oncological mortality in young age (0-44 years) in the City of Vercelli, was aimed to address the concerns of the population and the request of municipal administrators. A detailed and sophisticated study for a City of medium-small size is due for the presence of various sources of pressure, such as a MSW incinerator just a few kilometres from the city and an intensive agricultural activity that characterizes the entire area...
January 2017: Annali di Igiene: Medicina Preventiva e di Comunità
https://www.readbyqxmd.com/read/28063754/quantifying-spatial-misclassification-in-exposure-to-noise-complaints-among-low-income-housing-residents-across-new-york-city-neighborhoods-a-global-positioning-system-gps-study
#7
Dustin T Duncan, Kosuke Tamura, Seann D Regan, Jessica Athens, Brian Elbel, Julie Meline, Yazan A Al-Ajlouni, Basile Chaix
PURPOSE: To examine if there was spatial misclassification in exposure to neighborhood noise complaints among a sample of low-income housing residents in New York City, comparing home-based spatial buffers and Global Positioning System (GPS) daily path buffers. METHODS: Data came from the community-based NYC Low-Income Housing, Neighborhoods and Health Study, where GPS tracking of the sample was conducted for a week (analytic n = 102). We created a GPS daily path buffer (a buffering zone drawn around GPS tracks) of 200 m and 400 m...
October 29, 2016: Annals of Epidemiology
https://www.readbyqxmd.com/read/28060851/molecular-evidence-of-transmission-of-influenza-a-h1n1-2009-on-a-university-campus
#8
Ramandeep Kaur Virk, Vithiagaran Gunalan, Hong Kai Lee, Masafumi Inoue, Catherine Chua, Boon-Huan Tan, Paul Anantharajah Tambyah
BACKGROUND: In the recent years, the data on the molecular epidemiology of influenza viruses have expanded enormously because of the availability of cutting-edge sequencing technologies. However, much of the information is from the temperate regions with few studies from tropical regions such as South-east Asia. Despite the fact that influenza has been known to transmit rapidly within semi-closed communities, such as military camps and educational institutions, data are limited from these communities...
2017: PloS One
https://www.readbyqxmd.com/read/28057167/moderate-dose-regular-lifelong-alcohol-intake-changes-the-intestinal-flora-protects-against-aging-and-keeps-spatial-memory-in-the-senescence-accelerated-mouse-prone-8-samp8-model
#9
Chikako Shimizu, Yasuhiro Oki, Yutaka Mitani, Youichi Tsuchiya, Toshitaka Nabeshima
PURPOSE: Heavy and long-term alcohol consumption increase the risk of alcohol-related diseases. Epidemiological studies show moderate drinking reduces the risk of mortality, cardiovascular diseases, and brain infarction in the J-shaped or U-shaped curve effect. However, why moderate drinkers may be healthy and non-drinkers may be ill in diverse populations remains controversial. Herein, we examined the relationship between moderate/lifelong alcohol intake and aging, especially aging-related cognitive functions in senescence-accelerated mouse prone 8 (SAMP8) model...
October 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28056840/rapid-increase-of-scrub-typhus-incidence-in-guangzhou-southern-china-2006-2014
#10
Ye Sun, Yue-Hong Wei, Yang Yang, Yu Ma, Sake J de Vlas, Hong-Wu Yao, Yong Huang, Mai-Juan Ma, Kun Liu, Xiao-Ning Li, Xin-Lou Li, Wen-Hui Zhang, Li-Qun Fang, Zhi-Cong Yang, Wu-Chun Cao
BACKGROUND: In the last decade, scrub typhus (ST) has been emerging or re-emerging in some areas of Asia, including Guangzhou, one of the most affected endemic areas of ST in China. METHODS: Based on the data on all cases reported in Guangzhou from 2006 to 2014, we characterized the epidemiological features, and identified environmental determinants for the spatial distribution of ST using a panel negative binomial model. RESULTS: A total of 4821 scrub typhus cases were reported in Guangzhou during 2006-2014...
January 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28056726/community-mapping-of-sex-work-criminalization-and-violence-impacts-on-hiv-treatment-interruptions-among-marginalized-women-living-with-hiv-in-vancouver-canada
#11
Shira M Goldenberg, Kathleen Deering, Ofer Amram, Silvia Guillemi, Paul Nguyen, Julio Montaner, Kate Shannon
Despite the high HIV burden faced by sex workers, data on access and retention in antiretroviral therapy (ART) are limited. Using an innovative spatial epidemiological approach, we explored how the social geography of sex work criminalization and violence impacts HIV treatment interruptions among sex workers living with HIV in Vancouver over a 3.5-year period. Drawing upon data from a community-based cohort (AESHA, 2010-2013) and linked external administrative data on ART dispensation, GIS mapping and multivariable logistic regression with generalized estimating equations to prospectively examine the effects of spatial criminalization and violence near women's places of residence on 2-day ART interruptions...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28039001/paliperidone-reverts-toll-like-receptor-3-signaling-pathway-activation-and-cognitive-deficits-in-a-maternal-immune-activation-mouse-model-of-schizophrenia
#12
Karina S MacDowell, Eva Munarriz-Cuezva, Javier R Caso, José L M Madrigal, Arantzazu Zabala, J Javier Meana, Borja García-Bueno, Juan C Leza
The pathophysiology of psychotic disorders is multifactorial, including alterations in the immune system caused by exogenous or endogenous factors. Epidemiological and experimental studies indicate that infections during the gestational period represent a risk factor to develop schizophrenia (SZ) along lifetime. Here, we tested the hypothesis that the antipsychotic paliperidone regulates immune-related brain effects in an experimental model of SZ. A well described prenatal immune activation model of SZ in mice by maternal injection of the viral mimetic poly(I:C) during pregnancy was used...
December 28, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/28038970/can-commercial-low-cost-sensor-platforms-contribute-to-air-quality-monitoring-and-exposure-estimates
#13
Nuria Castell, Franck R Dauge, Philipp Schneider, Matthias Vogt, Uri Lerner, Barak Fishbain, David Broday, Alena Bartonova
The emergence of low-cost, user-friendly and very compact air pollution platforms enable observations at high spatial resolution in near-real-time and provide new opportunities to simultaneously enhance existing monitoring systems, as well as engage citizens in active environmental monitoring. This provides a whole new set of capabilities in the assessment of human exposure to air pollution. However, the data generated by these platforms are often of questionable quality. We have conducted an exhaustive evaluation of 24 identical units of a commercial low-cost sensor platform against CEN (European Standardization Organization) reference analyzers, evaluating their measurement capability over time and a range of environmental conditions...
December 27, 2016: Environment International
https://www.readbyqxmd.com/read/28024215/antidepressant-sales-and-regional-variations-of-suicide-mortality-in-germany
#14
Victor Blüml, Marco Helbich, Michael Mayr, Roland Turnwald, Benjamin Vyssoki, Ute Lewitzka, Sebastian Hartung, Paul L Plener, Jörg M Fegert, Nestor D Kapusta
Suicides account for over one million deaths per year worldwide with depression among the most important risk factors. Epidemiological research into the relationship between antidepressant utilization and suicide mortality has shown heterogeneous and contradictory results. Different methodological approaches and limitations could at least partially explain varying results. This is the first study assessing the association of suicide mortality and antidepressant sales across Germany using complex statistical approaches in order to control for possible confounding factors including spatial dependency of data...
December 13, 2016: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28018997/an-overview-of-geospatial-methods-used-in-unintentional-injury-epidemiology
#15
REVIEW
Himalaya Singh, Lauren V Fortington, Helen Thompson, Caroline F Finch
BACKGROUND: Injuries are a leading cause of death and disability around the world. Injury incidence is often associated with socio-economic and physical environmental factors. The application of geospatial methods has been recognised as important to gain greater understanding of the complex nature of injury and the associated diverse range of geographically-diverse risk factors. Therefore, the aim of this paper is to provide an overview of geospatial methods applied in unintentional injury epidemiological studies...
December 2016: Injury Epidemiology
https://www.readbyqxmd.com/read/28005901/mapping-soil-transmitted-helminths-and-schistosomiasis-under-uncertainty-a-systematic-review-and-critical-appraisal-of-evidence
#16
Andrea L Araujo Navas, Nicholas A S Hamm, Ricardo J Soares Magalhães, Alfred Stein
BACKGROUND: Spatial modelling of STH and schistosomiasis epidemiology is now commonplace. Spatial epidemiological studies help inform decisions regarding the number of people at risk as well as the geographic areas that need to be targeted with mass drug administration; however, limited attention has been given to propagated uncertainties, their interpretation, and consequences for the mapped values. Using currently published literature on the spatial epidemiology of helminth infections we identified: (1) the main uncertainty sources, their definition and quantification and (2) how uncertainty is informative for STH programme managers and scientists working in this domain...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28003195/a-new-multilocus-variable-number-of-tandem-repeat-analysis-mlva-scheme-for-fine-tune-monitoring-and-microevolution-study-of-ralstonia-pseudosolanacearum-phylotype-i-populations
#17
Jérémy Guinard, Anne Latreille, Fabien Guérin, Stéphane Poussier, Emmanuel Wicker
: Bacterial wilt caused by the Ralstonia solanacearum species complex (RSSC) is considered as one of the most harmful plant disease in the world. Special careful should be paid to R. pseudosolanacearum phylotype I due to its large host range, its worldwide distribution, and its high evolutionary potential. So far, molecular epidemiology and population genetics of this bacterium are still poorly understood. Until now, the genetic structure of the RSSC has been analyzed at the worldwide and regional scales...
December 21, 2016: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28000684/levels-and-determinants-of-tree-pollen-in-new-york-city
#18
Kate R Weinberger, Patrick L Kinney, Guy S Robinson, Daniel Sheehan, Iyad Kheirbek, Thomas D Matte, Gina S Lovasi
Exposure to allergenic tree pollen is a risk factor for multiple allergic disease outcomes. Little is known about how tree pollen levels vary within cities and whether such variation affects the development or exacerbation of allergic disease. Accordingly, we collected integrated pollen samples at uniform height at 45 sites across New York City during the 2013 pollen season. We used these monitoring results in combination with adjacent land use data to develop a land use regression model for tree pollen. We evaluated four types of land use variables for inclusion in the model: tree canopy, distributed building height (a measure of building volume density), elevation, and distance to water...
December 21, 2016: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/27998421/-integration-of-spatial-epidemiology-and-molecular-epidemiology-used-for-study-on-tuberculosis
#19
W M Chen, Q R Zhou, X M Wang, H S Mao, P Wang, L Zhou, W B Wang
Spatial epidemiology and molecular epidemiology have been widely used in the studies of tuberculosis (TB), but each with limitations. Integration of the two methods provides new ideas and methods in TB research. All referenced articles are from CNKI, Wan Fang database, PubMed database and Web of Science database. Method of combining spatial epidemiology and molecular epidemiology has been widely used in determining the local epidemic strains of TB genotype, the transmission mechanism, risk factors of TB, drug-resistant TB, as well as evaluating the effectiveness of TB prevention and control measures...
December 10, 2016: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/27997324/an-evaluation-of-the-buffering-effects-of-types-and-sources-of-support-on-depressive-symptoms-among-natural-disaster-exposed-chinese-adults
#20
Brian J Hall, Kalon Sou, Wen Chen, Fangjing Zhou, Kay Chang, Carl Latkin
OBJECTIVE: Social support is a key protective factor for people exposed to natural disasters. The effect of type and source of this support is not well documented. Investigations are needed to identify the specific modifying role of received and perceived support from family and friends on the association between disaster exposure and depressive symptoms. METHODS: Face-to-face household interviews were conducted in 2014 with a random sample of 751 adults recruited from Yuexiu and Tianhe districts in Guangzhou, China...
2016: Psychiatry
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