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https://www.readbyqxmd.com/read/28104695/infectious-disease-risk-and-international-tourism-demand
#1
Jaume Rosselló, Maria Santana-Gallego, Waqas Awan
CONTEXT:  For some countries, favourable climatic conditions for tourism are often associated with favourable conditions for infectious diseases, with the ensuing development constraints on the tourist sectors of impoverished countries where tourism's economic contribution has a high potential. This paper evaluates the economic implications of eradication of Malaria, Dengue, Yellow Fever and Ebola on the affected destination countries focusing on the tourist expenditures. METHODS:  A gravity model for international tourism flows is used to provide an estimation of the impact of each travel-related disease on international tourist arrivals...
January 18, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28088326/acute-kidney-injury-due-to-tropical-infectious-diseases-and-animal-venoms-a-tale-of-2-continents
#2
REVIEW
Emmanuel A Burdmann, Vivekanand Jha
South and Southeast Asia and Latin American together comprise 46 countries and are home to approximately 40% of the world population. The sociopolitical and economic heterogeneity, tropical climate, and malady transitions characteristic of the region strongly influence disease behavior and health care delivery. Acute kidney injury epidemiology mirrors these inequalities. In addition to hospital-acquired acute kidney injury in tertiary care centers, these countries face a large preventable burden of community-acquired acute kidney injury secondary to tropical infectious diseases or animal venoms, affecting previously healthy young individuals...
January 11, 2017: Kidney International
https://www.readbyqxmd.com/read/28076467/the-search-for-novel-insecticide-targets-in-the-post-genomics-era-with-a-specific-focus-on-g-protein-coupled-receptors
#3
Michelle Ngai, Mary Ann McDowell
Insects are considered pests globally, implicated in the destruction of agricultural fields and transmission of pathogens that cause deadly human diseases, such as dengue, Zika and malaria. The diversity of the insecticide arsenal has remained stagnant for decades, but the recent rise of insecticide resistance fueled the discovery of novel modes of action, and the power of genomics has reinvigorated this search. This review discusses the importance of comparative and functional insect genomics in the identification of potential gene targets for an insecticidal mode of action with low off-target toxicity...
January 1, 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28072517/arthropod-innate-immune-systems-and-vector-borne-diseases
#4
Richard H G Baxter, Alicia Contet, Kathryn Krueger
Arthropods, especially ticks and mosquitoes, are the vectors for a number of parasitic and viral human diseases including malaria, sleeping sickness, Dengue and Zika. Yet arthropods show tremendous individual variation in their capacity to transmit disease. A key factor in this capacity is genetically encoded immune factors that counteract infection by the pathogen. Arthropod-specific pattern recognition receptors and protease cascades detect and respond to infection. Proteins such as antimicrobial peptides, thioester-containing proteins, and transglutaminases effect responses such as lysis, phagocytosis, melanization and agglutination...
January 10, 2017: Biochemistry
https://www.readbyqxmd.com/read/28049485/the-dangers-of-accepting-a-single-diagnosis-case-report-of-concurrent-plasmodium-knowlesi-malaria-and-dengue-infection
#5
Soon Eu Chong, Rhendra Hardy Mohamad Zaini, Siti Suraiya, Kok Tong Lee, Jo Anne Lim
BACKGROUND: Dengue and malaria are two common, mosquito-borne infections, which may lead to mortality if not managed properly. Concurrent infections of dengue and malaria are rare due to the different habitats of its vectors and activities of different carrier mosquitoes. The first case reported was in 2005. Since then, several concurrent infections have been reported between the dengue virus (DENV) and the malaria protozoans, Plasmodium falciparum and Plasmodium vivax. Symptoms of each infection may be masked by a simultaneous second infection, resulting in late treatment and severe complications...
January 3, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28049478/the-transcriptome-of-the-mosquito-aedes-fluviatilis-diptera-culicidae-and-transcriptional-changes-associated-with-its-native-wolbachia-infection
#6
E P Caragata, F S Pais, L A Baton, J B L Silva, M H F Sorgine, L A Moreira
BACKGROUND: Wolbachia is a bacterial endosymbiont that naturally infects a wide range of insect species, and causes drastic changes to host biology. Stable infections of Wolbachia in mosquitoes can inhibit infection with medically important pathogens such as dengue virus and malaria-causing Plasmodium parasites. However, some native Wolbachia strains can enhance infection with certain pathogens, as is the case for the mosquito Aedes fluviatilis, where infection with Plasmodium gallinaceum is enhanced by the native wFlu Wolbachia strain...
January 3, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28030537/molecular-virologic-and-clinical-characteristics-of-a-chikungunya-fever-outbreak-in-la-romana-dominican-republic-2014
#7
Rose M Langsjoen, Rebecca J Rubinstein, Tiffany F Kautz, Albert J Auguste, Jesse H Erasmus, Liddy Kiaty-Figueroa, Renessa Gerhardt, David Lin, Kumar L Hari, Ravi Jain, Nicolas Ruiz, Antonio E Muruato, Jael Silfa, Franklin Bido, Matthew Dacso, Scott C Weaver
Since emerging in Saint Martin in 2013, chikungunya virus (CHIKV), an alphavirus transmitted by the Aedes aegypti mosquito, has infected approximately two million individuals in the Americas, with over 500,000 reported cases in the Dominican Republic (DR). CHIKV-infected patients typically present with a febrile syndrome including polyarthritis/polyarthralgia, and a macropapular rash, similar to those infected with dengue and Zika viruses, and malaria. Nevertheless, many Dominican cases are unconfirmed due to the unavailability and high cost of laboratory testing and the absence of specific treatment for CHIKV infection...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28028142/identification-of-disease-transmitting-mosquitoes-development-of-species-specific-probes-for-dna-chip-assay-using-mitochondrial-coi-and-nd2-genes-and-ribosomal-internal-transcribed-spacer-2
#8
Xi Wang, Wu-Chun Tu, En-Jiong Huang, Yen-Hou Chen, Jia-Hua Chen, Wen-Bin Yeh
Mosquitoes, which transmit infectious diseases, such as malaria and dengue fever, are harmful to human health. Thus, accurate and rapid identification of vectors is a critical step for the control of mosquito-borne diseases. However, phenotypic variations in adults, lack of recognizable features of the immature, and fragility of mosquitoes make identification difficult. Molecular approaches have been widely applied to identify mosquitoes, yet these methods have been focused only on the identification of a few species...
December 27, 2016: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28009103/experts-perceptions-on-china-s-capacity-to-manage-emerging-and-re-emerging-zoonotic-diseases-in-an-era-of-climate-change
#9
A Hansen, J Xiang, Q Liu, M X Tong, Y Sun, X Liu, K Chen, S Cameron, S Hanson-Easey, G-S Han, P Weinstein, C Williams, P Bi
Zoonotic diseases transmitted by arthropods and rodents are a major public health concern in China. However, interventions in recent decades have helped lower the incidence of several diseases despite the country's large, frequently mobile population and socio-economic challenges. Increasing globalization, rapid urbanization and a warming climate now add to the complexity of disease control and prevention and could challenge China's capacity to respond to threats of emerging and re-emerging zoonoses. To investigate this notion, face-to-face interviews were conducted with 30 infectious disease experts in four cities in China...
December 23, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28006651/identification-of-dengue-type-2-virus-in-febrile-travellers-returning-from-burkina-faso-to-france-related-to-an-ongoing-outbreak-october-to-november-2016
#10
Carole Eldin, Philippe Gautret, Antoine Nougairede, Mélanie Sentis, Laetitia Ninove, Nadia Saidani, Matthieu Million, Philippe Brouqui, Remi Charrel, Philippe Parola
Dengue fever is rarely reported in travellers returning from Africa. We report two cases of dengue fever in travellers returning from Burkina Faso to France. One of them presented a severe dengue fever with ALT > 1,000 IU/L and pericarditis. Serotype 2 was identified. The cases reflect a large ongoing outbreak with over 1,000 reported cases between August and November in the capital city. Clinicians should consider dengue fever in malaria-negative febrile travellers returning from Africa.
December 15, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/27990003/current-status-of-genome-editing-in-vector-mosquitoes-a-review
#11
Appadurai Daniel Reegan, Stanislaus Antony Ceasar, Michael Gabriel Paulraj, Savarimuthu Ignacimuthu, Naif Abdullah Al-Dhabi
Mosquitoes pose a major threat to human health as they spread many deadly diseases like malaria, dengue, chikungunya, filariasis, Japanese encephalitis and Zika. Identification and use of novel molecular tools are essential to combat the spread of vector borne diseases. Genome editing tools have been used for the precise alterations of the gene of interest for producing the desirable trait in mosquitoes. Deletion of functional genes or insertion of toxic genes in vector mosquitoes will produce either knock-out or knock-in mutants that will check the spread of vector-borne diseases...
December 18, 2016: Bioscience Trends
https://www.readbyqxmd.com/read/27989728/mayaro-virus-a-forest-virus-primed-for-a-trip-to-the-city
#12
Ian M Mackay, Katherine E Arden
Mayaro virus (MAYV) is an emerging arthropod-borne virus (arbovirus). Infection by MAYV can produce Mayaro virus disease (MAYVD) which is usually a clinically diagnosed, acute, febrile illness associated with prolonged and painful joint inflammation and swelling. MAYVD may be clinically indistinguishable from dengue, chikungunya fever, malaria, rabies, measles or other arboviral diseases. The full spectrum of disease, sequelae, routes of infection, virus shedding and any rarer means of transmission remain undefined...
December 2016: Microbes and Infection
https://www.readbyqxmd.com/read/27982119/declining-prevalence-of-disease-vectors-under-climate-change
#13
Luis E Escobar, Daniel Romero-Alvarez, Renato Leon, Manuel A Lepe-Lopez, Meggan E Craft, Mercy J Borbor-Cordova, Jens-Christian Svenning
More than half of the world population is at risk of vector-borne diseases including dengue fever, chikungunya, zika, yellow fever, leishmaniasis, chagas disease, and malaria, with highest incidences in tropical regions. In Ecuador, vector-borne diseases are present from coastal and Amazonian regions to the Andes Mountains; however, a detailed characterization of the distribution of their vectors has never been carried out. We estimate the distribution of 14 vectors of the above vector-borne diseases under present-day and future climates...
December 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27942961/long-lasting-permethrin-impregnated-clothing-protective-efficacy-against-malaria-in-hyperendemic-foci-and-laundering-wearing-and-weathering-effects-on-residual-bioactivity-after-worst-case-use-in-the-rain-forests-of-french-guiana
#14
Bruno Most, Vincent Pommier de Santi, Frédéric Pagès, Marie Mura, Waltraud M Uedelhoven, Michael K Faulde
Personal protective measures against hematophagous vectors constitute the first line of defense against arthropod-borne diseases. However, guidelines for the standardized testing and licensing of insecticide-treated clothing are still lacking. The aim of this study was to analyze the preventive effect of long-lasting polymer-coated permethrin-impregnated clothing (PTBDU) against malaria after exposure to high-level disease transmission sites as well as the corresponding loss of permethrin and bioactivity during worst-case field use...
December 10, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27942194/acute-undifferentiated-febrile-illness-in-patients-presenting-to-a-tertiary-care-hospital-in-south-india-clinical-spectrum-and-outcome
#15
Kundavaram Paul Prabhakar Abhilash, Jonathan Arul Jeevan, Shubhanker Mitra, Nirvin Paul, Thimiri Palani Murugan, Ajay Rangaraj, Sandeep David, Samuel George Hansdak, John Antony Jude Prakash, Asha Mary Abraham, Prakash Ramasami, Sowmya Sathyendra, Thambu David Sudarsanam, George M Varghese
BACKGROUND: Acute undifferentiated febrile illness (AUFI) may have similar clinical presentation, and the etiology is varied and region specific. MATERIALS AND METHODS: This prospective observational study was conducted in a tertiary hospital in South India. All adult patients presenting with AUFI of 3-14 days duration were evaluated for etiology, and the differences in presentation and outcome were analyzed. RESULTS: The study cohort included 1258 patients...
October 2016: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/27942016/dengue-and-chikungunya-virus-infections-among-young-febrile-adults-evaluated-for-acute-hiv-1-infection-in-coastal-kenya
#16
Carolyne N Ngoi, Matt A Price, Barry Fields, Juma Bonventure, Caroline Ochieng, Grace Mwashigadi, Amin S Hassan, Alexander N Thiong'o, Murugi Micheni, Peter Mugo, Susan Graham, Eduard J Sanders
BACKGROUND: Fever is common among patients seeking care in sub-Saharan Africa (sSA), but causes other than malaria are rarely diagnosed. We assessed dengue and chikungunya virus infections among young febrile adults evaluated for acute HIV infection (AHI) and malaria in coastal Kenya. METHODS: We tested plasma samples obtained in a cross-sectional study from febrile adult patients aged 18-35 years evaluated for AHI and malaria at urgent care seeking at seven health facilities in coastal Kenya in 2014-2015...
2016: PloS One
https://www.readbyqxmd.com/read/27929364/ipomoea-batatas-convolvulaceae-mediated-synthesis-of-silver-nanoparticles-for-controlling-mosquito-vectors-of-aedes-albopictus-anopheles-stephensi-and-culex-quinquefasciatus-diptera-culicidae
#17
V Pavithra Bharathi, C Ragavendran, N Murugan, D Natarajan
We proposed an effective and eco-friendly control of dengue, malaria, and filariasis-causing vectors. We tested Ipomoea batatas leaves-mediated silver nanoparticles (AgNPs) against first to fourth instar larvae and adults of Aedes albopictus, Anopheles stephensi, and Culex quinquefasciatus at different concentrations. The synthesized AgNPs showed broad spectrum of larvicidal and adulticidal effects after 48 h of exposure. The characterization of synthesized AgNPs was done using various spectral and microscopy analyses...
December 8, 2016: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27924792/a-cost-effective-approach-to-the-diagnosis-and-management-of-acute-infectious-encephalitis
#18
Usha Kant Misra, Vinita Elizabeth Mani, Jayantee Kalita
SETTING: A tertiary care teaching hospital in India. OBJECTIVE: To report a syndromic approach to acute encephalitis syndrome (AES) and propose a cost-effective model. STUDY DESIGN: AES patients were categorized by the presence or absence of myalgia/rash into systemic and neurological AES. The patients with systemic AES were investigated for dengue, scrub typhus, leptospira, chikungunya, and malaria, and those with neurological AES were investigated for herpes and Japanese encephalitis (JE)...
2017: European Neurology
https://www.readbyqxmd.com/read/27922884/extracorporeal-membrane-oxygenation-in-dengue-malaria-and-acute-chagas-disease
#19
Cornelis M Schreuder, Jhonathan A Eslava, Leonardo A Salazar, Adriana S Murcia, Mario J Forero, Mauricio A Orozco, Luis E Echeverría, Antonio Figueredo
Extracorporeal Membrane Oxygenation (ECMO) is widely used in Acute Respiratory Distress Syndrome (ARDS) and myocarditis. Severe vector-mediated diseases may be complicated by ARDS or myocarditis, which are both associated with a high mortality rate. We present six cases of severe dengue, malaria, and acute Chagas disease that were treated with ECMO from September 2007 to September 2015. Patients included two pediatric and four adults (ages 12 to 48). Survival to decannulation was 83% and to discharge was 66%...
December 2, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27915056/human-to-human-transmission-of-arthropod-borne-pathogens
#20
REVIEW
Byron E Martina, Luisa Barzon, Gorben P Pijlman, José de la Fuente, Annapaola Rizzoli, Linda J Wammes, Willem Takken, Ronald P van Rij, Anna Papa
Human-to-human (H2H) transmitted arthropod-borne pathogens are a growing burden worldwide, with malaria and dengue being the most common mosquito-borne H2H transmitted diseases. The ability of vectors to get infected by humans during a blood meal to further propel an epidemic depends on complex interactions between pathogens, vectors and humans, in which human interventions and demographic and environmental conditions play a significant role. Herein, we discuss the distal and proximal drivers affecting H2H vector-borne pathogen transmission and identify knowledge gaps and future perspectives...
December 1, 2016: Current Opinion in Virology
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