keyword
MENU ▼
Read by QxMD icon Read
search

Spatial epidemiology

keyword
https://www.readbyqxmd.com/read/28637378/surveillance-to-inform-control-of-emerging-plant-diseases-an-epidemiological-perspective
#1
Stephen Parnell, Frank van den Bosch, Tim Gottwald, Christopher A Gilligan
The rise in emerging pathogens and strains has led to increased calls for more effective surveillance in plant health. We show how epidemiological insights about the dynamics of disease spread can improve the targeting of when and where to sample. We outline some relatively simple but powerful statistical approaches to inform surveillance and describe how they can be adapted to include epidemiological information. This enables us to address questions such as: Following the first report of an invading pathogen, what is the likely incidence of disease? If no cases of disease have been found, how certain can we be that the disease was not simply missed by chance? We illustrate the use of spatially explicit stochastic models to optimize targeting of surveillance and control resources...
June 21, 2017: Annual Review of Phytopathology
https://www.readbyqxmd.com/read/28631116/environmental-factors-and-zoonotic-pathogen-ecology-in-urban-exploiter-species
#2
REVIEW
Jamie L Rothenburger, Chelsea H Himsworth, Nicole M Nemeth, David L Pearl, Claire M Jardine
Knowledge of pathogen ecology, including the impacts of environmental factors on pathogen and host dynamics, is essential for determining the risk that zoonotic pathogens pose to people. This review synthesizes the scientific literature on environmental factors that influence the ecology and epidemiology of zoonotic microparasites (bacteria, viruses and protozoa) in globally invasive urban exploiter wildlife species (i.e., rock doves [Columba livia domestica], European starlings [Sturnus vulgaris], house sparrows [Passer domesticus], Norway rats [Rattus norvegicus], black rats [R...
June 19, 2017: EcoHealth
https://www.readbyqxmd.com/read/28622789/characterization-of-the-epidemiology-of-bat-borne-rabies-in-chile-between-2003-and-2013
#3
Raul Alegria-Moran, Daniela Miranda, Matt Barnard, Alonso Parra, Lisette Lapierre
Rabies is a zoonotic disease of great impact to public health. According to the World Health Organization, the country of Chile is currently declared free from human rabies transmitted by dogs. An epidemiological characterization and description was conducted using rabies data from 2003 to 2013 held by the National Program for Prevention and Control of Rabies from the Ministry of Health, consisting of bats samples reported as suspect and samples taken by active surveillance (bats brain tissue). Spatial autocorrelation analysis was performed using Local Indicators of Spatial Association (LISA) statistics, particularly Moran's I index, for the detection of spatial clusters...
August 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28621543/estimating-particulate-exposure-from-modern-municipal-waste-incinerators-in-great-britain
#4
Philippa Douglas, Anna Freni-Sterrantino, Maria Leal Sanchez, Danielle C Ashworth, Rebecca E Ghosh, Daniela Fecht, Anna Font, Marta Blangiardo, John Gulliver, Mireille B Toledano, Paul Elliott, Kees de Hoogh, Gary W Fuller, Anna L Hansell
Municipal Waste Incineration (MWI) is regulated through the European Union Directive on Industrial Emissions (IED), but there is ongoing public concern regarding potential hazards to health. Using dispersion modeling, we estimated spatial variability in PM10 concentrations arising from MWIs at postcodes (average 12 households) within 10 km of MWIs in Great Britain (GB) in 2003-2010. We also investigated change points in PM10 emissions in relation to introduction of EU Waste Incineration Directive (EU-WID) (subsequently transposed into IED) and correlations of PM10 with SO2, NOx, heavy metals, polychlorinated dibenzo-p-dioxins/furan (PCDD/F), polycyclic aromatic hydrocarbon (PAH) and polychlorinated biphenyl (PCB) emissions...
June 16, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28620577/population-structure-of-the-soft-tick-ornithodoros-maritimus-and-its-associated-infectious-agents-within-a-colony-of-its-seabird-host-larus-michahellis
#5
Marlene Dupraz, Céline Toty, Elodie Devillers, Thomas Blanchon, Eric Elguero, Marion Vittecoq, Sara Moutailler, Karen D McCoy
The epidemiology of vector-borne zoonoses depends on the movement of both hosts and vectors, which can differ greatly in intensity across spatial scales. Because of their life history traits and small size, vector dispersal may be frequent, but limited in distance. However, little information is available on vector movement patterns at local spatial scales, and particularly for ticks, transmitting the greatest diversity of recognized infectious agents. To test the degree to which ticks can disperse and disseminate pathogens at local scales, we investigated the temporal dynamics and population structure of the soft tick Ornithodoros maritimus within a colony of its seabird host, the Yellow-legged gull Larus michahellis...
August 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28617810/population-level-impact-of-an-accelerated-hiv-response-plan-to-reach-the-unaids-90-90-90-target-in-c%C3%A3-te-d-ivoire-insights-from-mathematical-modeling
#6
Mathieu Maheu-Giroux, Juan F Vesga, Souleymane Diabaté, Michel Alary, Stefan Baral, Daouda Diouf, Kouamé Abo, Marie-Claude Boily
BACKGROUND: National responses will need to be markedly accelerated to achieve the ambitious target of the Joint United Nations Programme on HIV/AIDS (UNAIDS). This target aims for 90% of HIV-positive individuals to be aware of their status, for 90% of those aware to receive antiretroviral therapy (ART), and for 90% of those on treatment to have a suppressed viral load by 2020, with each individual target reaching 95% by 2030. We aimed to estimate the impact of various treatment-as-prevention scenarios in Côte d'Ivoire, one of the countries with the highest HIV incidence in West Africa, with unmet HIV prevention and treatment needs, and where key populations are important to the broader HIV epidemic...
June 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28615687/multi-drug-resistant-klebsiella-pneumoniae-strains-circulating-in-hospital-setting-whole-genome-sequencing-and-bayesian-phylogenetic-analysis-for-outbreak-investigations
#7
Eleonora Cella, Massimo Ciccozzi, Alessandra Lo Presti, Marta Fogolari, Taj Azarian, Mattia Prosperi, Marco Salemi, Michele Equestre, Francesca Antonelli, Alessia Conti, Marina De Cesaris, Silvia Spoto, Raffaele Antonelli Incalzi, Roberto Coppola, Giordano Dicuonzo, Silvia Angeletti
Carbapenems resistant Enterobacteriaceae infections are increasing worldwide representing an emerging public health problem. The application of phylogenetic and phylodynamic analyses to bacterial whole genome sequencing (WGS) data have become essential in the epidemiological surveillance of multi-drug resistant nosocomial pathogens. Between January 2012 and February 2013, twenty-one multi-drug resistant K. pneumoniae strains, were collected from patients hospitalized among different wards of the University Hospital Campus Bio-Medico...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28612053/micro-epidemiological-structuring-of-plasmodium-falciparum-parasite-populations-in-regions-with-varying-transmission-intensities-in-africa
#8
Irene Omedo, Polycarp Mogeni, Teun Bousema, Kirk Rockett, Alfred Amambua-Ngwa, Isabella Oyier, Jennifer C Stevenson, Amrish Y Baidjoe, Etienne P de Villiers, Greg Fegan, Amanda Ross, Christina Hubbart, Anne Jeffreys, Thomas N Williams, Dominic Kwiatkowski, Philip Bejon
Background: The first models of malaria transmission assumed a completely mixed and homogeneous population of parasites.  Recent models include spatial heterogeneity and variably mixed populations. However, there are few empiric estimates of parasite mixing with which to parametize such models. Methods: Here we genotype 276 single nucleotide polymorphisms (SNPs) in 5199 P. falciparum isolates from two Kenyan sites and one Gambian site to determine the spatio-temporal extent of parasite mixing, and use Principal Component Analysis (PCA) and linear regression to examine the relationship between genetic relatedness and relatedness in space and time for parasite pairs...
2017: Wellcome Open Research
https://www.readbyqxmd.com/read/28611973/quantifying-the-modern-city-emerging-technologies-and-big-data-for-active-living-research
#9
REVIEW
Deepti Adlakha
Opportunities and infrastructure for active living are an important aspect of a community's design, livability, and health. Features of the built environment influence active living and population levels of physical activity, but objective study of the built environment influence on active living behaviors is challenging. The use of emerging technologies for active living research affords new and promising means to obtain objective data on physical activity behaviors and improve the precision and accuracy of measurements...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28611015/too-far-to-care-measuring-public-attention-and-fear-for-ebola-using-twitter
#10
Liza Gg van Lent, Hande Sungur, Florian A Kunneman, Bob van de Velde, Enny Das
BACKGROUND: In 2014, the world was startled by a sudden outbreak of Ebola. Although Ebola infections and deaths occurred almost exclusively in Guinea, Sierra Leone, and Liberia, few potential Western cases, in particular, caused a great stir among the public in Western countries. OBJECTIVE: This study builds on the construal level theory to examine the relationship between psychological distance to an epidemic and public attention and sentiment expressed on Twitter...
June 13, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28608436/bayesian-epidemic-models-for-spatially-aggregated-count-data
#11
Chrisovalantis Malesios, Nikolaos Demiris, Konstantinos Kalogeropoulos, Ioannis Ntzoufras
Epidemic data often possess certain characteristics, such as the presence of many zeros, the spatial nature of the disease spread mechanism, environmental noise, serial correlation and dependence on time-varying factors. This paper addresses these issues via suitable Bayesian modelling. In doing so, we utilize a general class of stochastic regression models appropriate for spatio-temporal count data with an excess number of zeros. The developed regression framework does incorporate serial correlation and time-varying covariates through an Ornstein-Uhlenbeck process formulation...
June 12, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28604791/challenges-in-developing-methods-for-quantifying-the-effects-of-weather-and-climate-on-water-associated-diseases-a-systematic-review
#12
Giovanni Lo Iacono, Ben Armstrong, Lora E Fleming, Richard Elson, Sari Kovats, Sotiris Vardoulakis, Gordon L Nichols
Infectious diseases attributable to unsafe water supply, sanitation and hygiene (e.g. Cholera, Leptospirosis, Giardiasis) remain an important cause of morbidity and mortality, especially in low-income countries. Climate and weather factors are known to affect the transmission and distribution of infectious diseases and statistical and mathematical modelling are continuously developing to investigate the impact of weather and climate on water-associated diseases. There have been little critical analyses of the methodological approaches...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28597535/epidemiology-of-campylobacteriosis-in-denmark-2000-2015
#13
K G Kuhn, E M Nielsen, K Mølbak, S Ethelberg
Campylobacter is the most frequently occurring cause of bacterial gastroenteritis in Europe. Unlike other zoonotic diseases, European-wide incidences of Campylobacter infections have increased during the past decade, resulting in a significant disease burden. In Denmark, campylobacteriosis is notifiable by laboratory and a unique registration system of electronic transfer and storage of notified Campylobacter cases linked to the national person register of age, gender and geographical location allows collection of comprehensive case data...
June 9, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28596616/using-social-network-measures-in-wildlife-disease-ecology-epidemiology-and-management
#14
Matthew J Silk, Darren P Croft, Richard J Delahay, David J Hodgson, Mike Boots, Nicola Weber, Robbie A McDonald
Contact networks, behavioral interactions, and shared use of space can all have important implications for the spread of disease in animals. Social networks enable the quantification of complex patterns of interactions; therefore, network analysis is becoming increasingly widespread in the study of infectious disease in animals, including wildlife. We present an introductory guide to using social-network-analytical approaches in wildlife disease ecology, epidemiology, and management. We focus on providing detailed practical guidance for the use of basic descriptive network measures by suggesting the research questions to which each technique is best suited and detailing the software available for each...
March 1, 2017: Bioscience
https://www.readbyqxmd.com/read/28595668/spatiotemporal-analysis-of-tuberculosis-incidence-and-its-associated-factors-in-mainland-china
#15
C Guo, Y DU, S Q Shen, X Q Lao, J Qian, C Q Ou
Spatiotemporal analysis is an important tool to monitor changes of tuberculosis (TB) epidemiology, identify high-risk regions and guide resource allocation. However, there are limited data on the contributing factors of TB incidence. This study aimed to investigate the spatiotemporal pattern of TB incidence and its associated factors in mainland China during 2005-2013. Global Moran's I test, Getis-Ord Gi index and heat maps were used to examine the spatial clustering and seasonal patterns. Generalized Linear Mixed Model was applied to identify factors associated with TB incidence...
June 9, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28594574/a-geospatial-epidemiologic-analysis-of-nontuberculous-mycobacterial-infection-an-ecological-study-in-colorado
#16
Ettie M Lipner, David Knox, Joshua French, Jordan Rudman, Michael Strong, James L Crooks
RATIONALE: Nontuberculous mycobacteria (NTM) are ubiquitous environmental microorganisms. Infection is thought to result primarily from exposure to soil and/or water sources. NTM disease prevalence varies greatly by geographic region, but the geospatial factors influencing this variation remain unclear. OBJECTIVES: To identify socio-demographic and environmental ecologic risk factors associated with NTM infection and disease in Colorado. METHODS: We conducted an ecological study combining data from patients with a diagnosis of NTM disease from National Jewish Health's Electronic Medical Record database and zip code-level socio-demographic and environmental exposure data obtained from the U...
June 8, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28593194/fine-scale-structure-analysis-shows-epidemic-patterns-of-clonal-complex-95-a-cosmopolitan-escherichia-coli-lineage-responsible-for-extraintestinal-infection
#17
David M Gordon, Sarah Geyik, Olivier Clermont, Claire L O'Brien, Shiwei Huang, Charmalie Abayasekara, Ashwin Rajesh, Karina Kennedy, Peter Collignon, Paul Pavli, Christophe Rodriguez, Brian D Johnston, James R Johnson, Jean-Winoc Decousser, Erick Denamur
The Escherichia coli lineage known as clonal complex 95 (CC95) is a cosmopolitan human-associated lineage responsible for a significant fraction of extraintestinal infections of humans. Whole-genome sequence data of 200 CC95 strains from various origins enabled determination of the CC95 pangenome. The pangenome analysis revealed that strains of the complex could be assigned to one of five subgroups that vary in their serotype, extraintestinal virulence, virulence gene content, and antibiotic resistance gene profile...
May 2017: MSphere
https://www.readbyqxmd.com/read/28592907/-epidemiology-of-asthma-in-adults-living-in-the-silesian-voivodeship-according-to-secondary-epidemiological-data
#18
Ewa Niewiadomska, Małgorzata Kowalska
BACKGROUND: Asthma is a serious public health challenge because of the increasing number of people with a new diagnosis and consequently the increasing costs of medical treatment (direct and indirect). The aim of this study is to analyze available epidemiological data with respect to their spatial and temporal variability in the Silesian voivodeship. In addition, the costs incurred by the National Health Fund (Narodowy Fundusz Zdrowia - NFZ) in treating asthmaic patients are analyzed...
June 8, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28591296/spatial-distribution-of-tuberculosis-in-a-municipality-in-the-interior-of-s%C3%A3-o-paulo-2008-2013
#19
Alcione Pereira Biffi Fusco, Ricardo Alexandre Arcêncio, Mellina Yamamura, Pedro Fredemir Palha, Amanda Alessandra Dos Reis, Tatiana Ferraz de Araújo Alecrim, Simone Teresinha Protti
Objective: to describe the epidemiological clinical profile of tuberculosis and analyze the spatial distribution of cases in a municipality in the state of São Paulo. Method: descriptive and ecological study of cases of tuberculosis through the records in an information system. Descriptive statistics were used to calculate central tendency (mean) and chi-square test, with Yates correction or Fisher exact test, when necessary. The Kernel technique was also used to calculate the occurrence densities of tuberculosis cases, using a radius of 1000 meters...
June 5, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/28590351/a-novel-approach-to-optimal-placement-of-new-trauma-centers-within-an-existing-trauma-system-using-geospatial-mapping
#20
Michael A Horst, Frederick B Rogers, Brian W Gross, Alan D Cook, Turner M Osler, Eric H Bradburn
BACKGROUND: Trauma system expansion is a complex process often governed by financial and health care system imperatives. We sought to propose a new, informed approach to trauma system expansion through the use of geospatial mapping. We hypothesized that geospatial mapping set to specific parameters could effectively identify optimal placement of new trauma centers (TC) within an existing trauma system. METHODS: We used Pennsylvania Trauma Systems Foundation (PTSF) registry data of adult (age ≥ 15) trauma for calendar years 2003-2015 (n=408,432), hospital demographics, road networks, and US Census data files...
June 6, 2017: Journal of Trauma and Acute Care Surgery
keyword
keyword
18883
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"