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https://www.readbyqxmd.com/read/28206868/mosquito-vector-biology-and-control-in-latin-america-a-26th-symposium
#1
Lee W Cohnstaedt, Catalina Alfonso-Para, Ildefonso Fernandez-Salas
The 26th Annual Latin American Symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 82nd Annual Meeting of the AMCA in Savannah, GA, in February 2016. The principal objective, as for the previous 25 symposia, was to promote participation in the AMCA by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 19 presentations that were given orally in Spanish by participants from Colombia, Ecuador, Mexico, and the USA...
December 2016: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28206867/mosquito-biology-and-mosquito-borne-disease-awareness-among-island-communities-in-malaysia
#2
Aziz Shafie, Muhammad Aidil Roslan, Romano Ngui, Yvonne Ai Lian Lim, Wan Yusoff Wan Sulaiman
Mosquito-borne diseases have been increasing at an alarming rate over the past decades. In Malaysia, one finds several important mosquito-borne diseases such as Japanese encephalitis, dengue, malaria, and chikungunya. Mosquito surveillance and control programs are the most effective way of detecting and controlling mosquito-borne diseases, but these programs are less effective without an aware and well-informed general public. In 2014 we used a questionnaire to evaluate the extent of awareness of basic mosquito biology and mosquito-borne diseases in 6 villages, Kampung Masjid, Kampung Teluk Gedung, Kampung Teluk Dalam, Kampung Ujung Kelawai, Kampung Sungai Pinang Besar, and Kampung Sungai Pinang Kechil on Pangkor Island, Malaysia...
December 2016: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28202065/alternative-transmission-routes-in-the-malaria-elimination-era-an-overview-of-transfusion-transmitted-malaria-in-the-americas
#3
Regina M Alho, Kim Vinícius Amaral Machado, Fernando F A Val, Nelson A Fraiji, Marcia A A Alexandre, Gisely C Melo, Judith Recht, André M Siqueira, Wuelton M Monteiro, Marcus V G Lacerda
BACKGROUND: Transfusion-transmitted (TT) malaria is an alternative infection route that has gained little attention from authorities, despite representing a life-threatening condition. There has been no systematic review of this health problem in American countries. The aim of this study was to describe the clinical and epidemiological characteristics of TT malaria in the Americas and identify factors associated with lethality based on the studies published in the literature. METHODS: Potentially relevant papers in all languages were retrieved from MEDLINE and LILACS...
February 15, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28198544/dengue-virus-and-malaria-concurrent-infection-among-febrile-subjects-within-ilorin-metropolis-nigeria
#4
Olatunji Matthew Kolawole, Adebimpe Adetola Seriki, Ahmad Adebayo Irekeola, Kizito Eneye Bello, Oluwapelumi Olufemi Adeyemi
Dengue is a mosquito-borne disease of public health importance. It is caused by four serotypes of Dengue virus (i.e. DENV-1, -2, -3 and -4). As a result of practices that are conducive for mosquito breading, its vector is widespread in Nigeria and this could result to possible DENV outbreaks in Nigeria and beyond. This study aimed to assess the recency of DENV infection as well as occurrence of DENV and Malaria co-infections within Ilorin, Nigeria. Blood samples were obtained from 176 febrile subjects and analyzed using Enzyme Linked Immunosorbent Assay (ELISA) for the presence of DENV antibodies...
February 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28193387/raising-the-red-flag-for-malaria-elimination-and-integrated-fever-surveillance-in-the-brazilian-amazon
#5
Andre M Siqueira, Quique Bassat, Sheila Rodovalho, Marcus V G Lacerda
No abstract text is available yet for this article.
March 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28193215/analysing-trends-and-forecasting-malaria-epidemics-in-madagascar-using-a-sentinel-surveillance-network-a-web-based-application
#6
Florian Girond, Laurence Randrianasolo, Lea Randriamampionona, Fanjasoa Rakotomanana, Milijaona Randrianarivelojosia, Maherisoa Ratsitorahina, Télesphore Yao Brou, Vincent Herbreteau, Morgan Mangeas, Sixte Zigiumugabe, Judith Hedje, Christophe Rogier, Patrice Piola
BACKGROUND: The use of a malaria early warning system (MEWS) to trigger prompt public health interventions is a key step in adding value to the epidemiological data routinely collected by sentinel surveillance systems. METHODS: This study describes a system using various epidemic thresholds and a forecasting component with the support of new technologies to improve the performance of a sentinel MEWS. Malaria-related data from 21 sentinel sites collected by Short Message Service are automatically analysed to detect malaria trends and malaria outbreak alerts with automated feedback reports...
February 13, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28192523/bead-based-immunoassay-allows-sub-picogram-detection-of-histidine-rich-protein-2-from-plasmodium-falciparum-and-estimates-reliability-of-malaria-rapid-diagnostic-tests
#7
Eric Rogier, Mateusz Plucinski, Naomi Lucchi, Kimberly Mace, Michelle Chang, Jean Frantz Lemoine, Baltazar Candrinho, James Colborn, Rafael Dimbu, Filomeno Fortes, Venkatachalam Udhayakumar, John Barnwell
Detection of histidine-rich protein 2 (HRP2) from the malaria parasite Plasmodium falciparum provides evidence for active or recent infection, and is utilized for both diagnostic and surveillance purposes, but current laboratory immunoassays for HRP2 are hindered by low sensitivities and high costs. Here we present a new HRP2 immunoassay based on antigen capture through a bead-based system capable of detecting HRP2 at sub-picogram levels. The assay is highly specific and cost-effective, allowing fast processing and screening of large numbers of samples...
2017: PloS One
https://www.readbyqxmd.com/read/28187990/how-to-contain-artemisinin-and-multidrug-resistant-falciparum-malaria
#8
REVIEW
Arjen M Dondorp, Frank M Smithuis, Charley Woodrow, Lorenz von Seidlein
In the Greater Mekong subregion (GMS), artemisinin resistance is increasingly compounded by partner drug resistance, causing high failure rates of artemisinin combination therapies in some areas. For its containment, an accelerated elimination strategy will be needed. This includes high-quality implementation of conventional malaria control measures: early case management with quality artemisinin combination therapies (avoiding artesunate monotherapies) and single gametocytocidal low dose of primaquine, vector control and surveillance...
February 7, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28183358/genetic-diversity-and-population-structure-of-the-primary-malaria-vector-anopheles-sinensis-diptera-culicidae-in-china-inferred-by-cox1-gene
#9
Xinyu Feng, Libin Huang, Lin Lin, Manni Yang, Yajun Ma
BACKGROUND: Anopheles sinensis is a primary vector for Plasmodium vivax malaria in most regions of China. A comprehensive understanding of genetic variation and structure of the mosquito would be of benefit to the vector control and in a further attempt to contribute to malaria elimination in China. However, there is only inadequate population genetic data pertaining to An. sinensis currently. METHODS: Genetic variations and structure among populations of An. sinensis was examined and analyzed based on the nucleotide sequences of a 662 nt variable region of the mitochondrial cox1 gene among 15 populations from 20 collection sites in China...
February 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28173802/malaria-from-hyperendemicity-to-elimination-in-hekou-county-on-china-vietnam-border-an-ecological-study
#10
Jian-Wei Xu, Jian-Jie Li, Hong-Ping Guo, Shu-Wei Pu, Shu-Mei Li, Rong-Hua Wang, Hui Liu, Wei-Jia Wang
BACKGROUND: Malaria control and elimination are challenged by diversity and complexity of the determinants on the international border in the Great Mekong Sub-region. Hekou, a Chinese county on the China-Vietnam border, was used to document Chinese experiences and lessons for malaria control and elimination. METHODS: The design was an ecological study. Malaria burden before 1951 and procedures of 64 years (1952-2015) from malaria hyperendemicity to elimination are described...
February 7, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28166794/an-epidemiological-study-to-assess-plasmodium-falciparum-parasite-prevalence-and-malaria-control-measures-in-burkina-faso-and-senegal
#11
Aldiouma Diallo, Ali Sié, Sodiomon Sirima, Khadime Sylla, Mahmadou Ndiaye, Mamadou Bountogo, Espérance Ouedraogo, Roger Tine, Assane Ndiaye, Boubacar Coulibaly, Alphonse Ouedraogo, Babacar Faye, El Hadji Ba, Guillaume Compaore, Alfred Tiono, Cheikh Sokhna, Maurice Yé, Amidou Diarra, Edith Roset Bahmanyar, Melanie De Boer, Jean-Yves Pirçon, Effua Abigail Usuf
BACKGROUND: Malariometric information is needed to decide how to introduce malaria vaccines and evaluate their impact in sub-Saharan African countries. METHODS: This cross-sectional study (NCT01954264) was conducted between October and November, 2013, corresponding to the high malaria transmission season, in four sites with Health and Demographic Surveillance Systems (DSS) [two sites with moderate-to-high malaria endemicity in Burkina Faso (Nouna and Saponé) and two sites with low malaria endemicity in Senegal (Keur Socé and Niakhar)]...
February 6, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28148300/increase-in-imported-malaria-in-the-netherlands-in-asylum-seekers-and-vfr-travellers
#12
Brechje de Gier, Franciska S T Suryapranata, Mieke Croughs, Perry J J van Genderen, Monique Keuter, Leo G Visser, Michele van Vugt, Gerard J B Sonder
BACKGROUND: Malaria is a notifiable disease in the Netherlands, a non-endemic country. Imported malaria infections occur regularly among travellers, migrants and visitors. Surveillance data were analysed from 2008 to 2015. Trends in amounts of notifications among risk groups were analysed using Poisson regression. For asylum seekers, yearly incidence was calculated per region of origin, using national asylum request statistics as denominator data. For tourists, denominator data were used from travel statistics to estimate incidence per travel region up to 2012...
February 2, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28140603/update-malaria-u-s-armed-forces-2016
#13
(no author information available yet)
Malaria infection remains an important health threat to U.S. service members who are located in endemic areas because of long-term duty assignments, participation in shorter-term contingency operations, or personal travel. In 2016, 57 service members were diagnosed with or reported to have malaria, which is the highest number of cases since 2011 (n=124). The relatively low numbers of cases during 2012-2016 mainly reflect decreases in cases acquired in Afghanistan, a reduction due largely to the progressive withdrawal of U...
January 2017: MSMR
https://www.readbyqxmd.com/read/28138056/outbreak-investigation-of-plasmodium-vivax-malaria-in-a-region-of-guatemala-targeted-for-malaria-elimination
#14
Robert Cohen, Joel Sarceño Cardona, Eliana Solares Navarro, Norma Padilla, Lisette Reyes, Rodrigo Javier Pinto Villar, Penny Masuoka, Chris Bernart, Leonard F Peruski, Joe P Bryan
The Department of Santa Rosa, Guatemala, is targeted for malaria elimination. However, compared with 2011, a 13-fold increase in cases was reported in 2012. To describe the epidemiology of malaria in Santa Rosa in the setting of the apparent outbreak, demographic and microscopic data from 2008 to 2013 were analyzed. In April 2012, a new surveillance strategy, funded by the Global Fund to Fight AIDS, Tuberculosis and Malaria, was introduced involving more active case detection, centralized microscopy, increased community engagement, and expanded vector control...
January 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28137270/malaria-control-and-prevention-towards-elimination-data-from-an-eleven-year-surveillance-in-shandong-province-china
#15
Xiangli Kong, Xin Liu, Hong Tu, Yan Xu, Jianbing Niu, Yongbin Wang, Changlei Zhao, Jingxuan Kou, Jun Feng
BACKGROUND: Shandong Province experienced a declining malaria trend of local-acquired transmission, but the increasing imported malaria remains a challenge. Therefore, understanding the epidemiological characteristics of malaria and the control and elimination strategy and interventions is needed for better planning to achieve the overall elimination goal in Shandong Province. METHODS: A retrospective study was conducted and all individual cases from a web-based reporting system were reviewed and analysed to explore malaria-endemic characteristics in Shandong from 2005 to 2015...
January 31, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28125993/health-impact-assessment-of-indira-sagar-project-a-paramount-to-studies-on-water-development-projects
#16
Anushrita, B N Nagpal, Neera Kapoor, Aruna Srivastava, Rekha Saxena, Shailendra Singh, Sanjeev Gupta, Sompal Singh, Kumar Vikram, Neena Valecha
BACKGROUND: Very limited studies on Health Impact Assessment (HIA) of Water Development Projects (WDP) in relation to mosquito-borne diseases have been carried out in India. The current study focuses on using HIA as a tool for finding impact of Indira Sagar Project, Madhya Pradesh on human health in relation to mosquito borne diseases, and emphasizing its incorporation as an integral part of any WDP. METHODS: Screening, scoping, assessment, recommendation, reporting, and evaluation were carried out in selected study areas...
January 26, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28122597/beyond-the-entomological-inoculation-rate-characterizing-multiple-blood-feeding-behavior-and-plasmodium-falciparum-multiplicity-of-infection-in-anopheles-mosquitoes-in-northern-zambia
#17
Smita Das, Mbanga Muleba, Jennifer C Stevenson, Julia C Pringle, Douglas E Norris
BACKGROUND: A commonly used measure of malaria transmission intensity is the entomological inoculation rate (EIR), defined as the product of the human biting rate (HBR) and sporozoite infection rate (SIR). The EIR excludes molecular parameters that may influence vector control and surveillance strategies. The purpose of this study was to investigate Anopheles multiple blood feeding behavior (MBF) and Plasmodium falciparum multiplicity of infection (MOI) within the mosquito host in Nchelenge District, northern Zambia...
January 26, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28118367/characterizing-antibody-responses-to-plasmodium-vivax-and-plasmodium-falciparum-antigens-in-india-using-genome-scale-protein-microarrays
#18
Swapna Uplekar, Pavitra Nagesh Rao, Lalitha Ramanathapuram, Vikky Awasthi, Kalpana Verma, Patrick Sutton, Syed Zeeshan Ali, Ankita Patel, Sri Lakshmi Priya G, Sangamithra Ravishankaran, Nisha Desai, Nikunj Tandel, Sandhya Choubey, Punam Barla, Deena Kanagaraj, Alex Eapen, Khageswar Pradhan, Ranvir Singh, Aarti Jain, Philip L Felgner, D Huw Davies, Jane M Carlton, Jyoti Das
Understanding naturally acquired immune responses to Plasmodium in India is key to improving malaria surveillance and diagnostic tools. Here we describe serological profiling of immune responses at three sites in India by probing protein microarrays consisting of 515 Plasmodium vivax and 500 Plasmodium falciparum proteins with 353 plasma samples. A total of 236 malaria-positive (symptomatic and asymptomatic) plasma samples and 117 malaria-negative samples were collected at three field sites in Raurkela, Nadiad, and Chennai...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28108199/freedom-from-infection-confirming-interruption-of-malaria-transmission
#19
REVIEW
Gillian Stresman, Angus Cameron, Chris Drakeley
The global reductions in disease burden and the continued spread of drug and insecticide resistance make malaria elimination both viable and imperative, although this may be more easily achieved in some settings compared to others. Whilst the focus has been on optimal approaches to achieve elimination, less attention has been paid to how to measure the absence of malaria. Measuring the absence of transmission poses a specific challenge in that it involves proving a negative. The concept of freedom from infection, routinely used in veterinary epidemiology, can provide quantitative and reproducible estimates that, if infections were present above a predefined (low) threshold, they would be detected with a known uncertainty...
January 17, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28103905/spatio-temporal-analysis-of-the-genetic-diversity-and-complexity-of-plasmodium-falciparum-infections-in-kedougou-southeastern-senegal
#20
Makhtar Niang, Laty G Thiam, Cheikh Loucoubar, Abdourahmane Sow, Bacary D Sadio, Mawlouth Diallo, Amadou A Sall, Aissatou Toure-Balde
BACKGROUND: Genetic analyses of the malaria parasite population and its temporal and spatial dynamics could provide an assessment of the effectiveness of disease control strategies. The genetic diversity of Plasmodium falciparum has been poorly documented in Senegal, and limited data are available from the Kedougou Region. This study examines the spatial and temporal variation of the genetic diversity and complexity of P. falciparum infections in acute febrile patients in Kedougou, southeastern Senegal...
January 19, 2017: Parasites & Vectors
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