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https://www.readbyqxmd.com/read/28764157/seroepidemiology-of-spotted-fever-rickettsiosis-in-uttar-pradesh-a-prospective-study
#1
Chandra Dev Pati Tripathi, Mastan Singh, Jyotsna Agarwal, Chandra Kanta, Virendra Atam
INTRODUCTION: Spotted Fever Rickettsiosis (SFR), an acute febrile illness caused by Rickettsia rickettsii, R. conorii and R. akari which is associated with considerable morbidity and mortality. SFR is one of the most covert emerging infections of the present time which is prevalent in various parts of India as shown by the increase in the number of clinically diagnosed patients in various states except Uttar Pradesh. AIM: To diagnose SFR in clinically suspected patients using serological tests and recognition of common epidemiologic situations and clinical manifestations of SFR in the state of Uttar Pradesh...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28758824/vaccine-development-and-trials-in-low-and-lower-middle-income-countries-key-issues-advances-and-future-opportunities
#2
Amy Grenham, Tonya Villafana
Over the past ten years there has been an increase in the number of vaccine clinical studies conducted in resource limited countries. These include vaccine trials for diseases such as malaria and dengue fever which are endemic to many low and lower-middle income countries. Concurrent with the increase in the number of trials, has been the increase and improvement in local infrastructure to enable the appropriate conduct and oversight of these trials in these settings, including strengthening of local scientific capabilities, ethical and regulatory oversight...
July 31, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28755145/mosquito-control-with-green-nanopesticides-towards-the-one-health-approach-a-review-of-non-target-effects
#3
Giovanni Benelli, Filippo Maggi, Roman Pavela, Kadarkarai Murugan, Marimuthu Govindarajan, Baskaralingam Vaseeharan, Riccardo Petrelli, Loredana Cappellacci, Suresh Kumar, Anders Hofer, Mohammad Reza Youssefi, Abdullah A Alarfaj, Jiang-Shiou Hwang, Akon Higuchi
The rapid spread of highly aggressive arboviruses, parasites, and bacteria along with the development of resistance in the pathogens and parasites, as well as in their arthropod vectors, represents a huge challenge in modern parasitology and tropical medicine. Eco-friendly vector control programs are crucial to fight, besides malaria, the spread of dengue, West Nile, chikungunya, and Zika virus, as well as other arboviruses such as St. Louis encephalitis and Japanese encephalitis. However, research efforts on the control of mosquito vectors are experiencing a serious lack of eco-friendly and highly effective pesticides, as well as the limited success of most biocontrol tools currently applied...
July 28, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28753671/self-reported-infections-during-international-travel-and-notifiable-infections-among-returning-international-travellers-sweden-2009-2013
#4
Viktor Dahl, Anders Wallensten
We studied food and water-borne diseases (FWDs), sexually transmitted diseases (STDs), vector-borne diseases (VBDs) and diseases vaccinated against in the Swedish childhood vaccination programme among Swedish international travellers, in order to identify countries associated with a high number of infections. We used the national database for notifiable infections to estimate the number of FWDs (campylobacteriosis, salmonellosis, giardiasis, shigellosis, EHEC, Entamoeba histolytica, yersinosis, hepatitis A, paratyphoid fever, typhoid fever, hepatitis E, listeriosis, cholera), STIs (chlamydia, gonorrhoea and acute hepatitis B), VBDs (dengue fever, malaria, West Nile fever, Japanese encephalitis and yellow fever) and diseases vaccinated against in the Swedish childhood vaccination programme (pertussis, measles, mumps, rubella, diphtheria) acquired abroad 2009-2013...
2017: PloS One
https://www.readbyqxmd.com/read/28748843/concurrent-mosquito-borne-triple-infections-of-dengue-malaria-and-chikungunya-a-case-report
#5
Neeru Gupta, Chhaya Gupta, Anju Gomber
No abstract text is available yet for this article.
April 2017: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/28742854/risk-of-exposure-to-potential-vector-mosquitoes-for-rural-workers-in-northern-lao-pdr
#6
Julie-Anne A Tangena, Phoutmany Thammavong, Steve W Lindsay, Paul T Brey
BACKGROUND: One major consequence of economic development in South-East Asia has been a rapid expansion of rubber plantations, in which outbreaks of dengue and malaria have occurred. Here we explored the difference in risk of exposure to potential dengue, Japanese encephalitis (JE), and malaria vectors between rubber workers and those engaged in traditional forest activities in northern Laos PDR. METHODOLOGY/PRINCIPAL FINDINGS: Adult mosquitoes were collected for nine months in secondary forests, mature and immature rubber plantations, and villages...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28728201/-fever-and-headache-after-a-vacation-in-thailand
#7
Benedikt Schwermer, Daniel Eschle, Constantine Bloch-Infanger
History 50 year-old man with fever and headache starting one week after returning from his vacation in Thailand. His general practitioner prescribed amoxicillin/clavulanic acid, without further analyses to pinpoint the infection. Examinations The examination of cerebro-spinal fluid was crucial for the final diagnosis. Lumbar puncture demonstrated a predominantly mononuclear pleocytosis of 80 cells/µl (< 5) with an elevated protein of 782 mg/l (< 450); glucose and lactate were within normal limits...
July 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28721101/survey-of-malaria-and-anti-dengue-virus-igg-among-febrile-hiv-infected-patients-attending-a-tertiary-hospital-in-abuja-nigeria
#8
Jelili Olaide Mustapha, Anthony Uchenna Emeribe, Idris Abdullahi Nasir
BACKGROUND: Dengue and malaria are infections, of great public health concern, especially in sub-Saharan Africa where the burden of HIV infection is high. This study was conducted to determine the seroprevalence of dengue virus IgG antibodies and dengue/malaria coinfection among febrile HIV-infected patients attending the University of Abuja Teaching Hospital, Gwagwalada, Abuja. METHODS: In this cross-sectional study, blood samples from 178 consenting HIV-infected patients receiving antiretroviral therapy were collected and tested for plasmodiasis and anti-Dengue virus IgG using malaria microscopy and ELISA, respectively...
2017: HIV/AIDS: Research and Palliative Care
https://www.readbyqxmd.com/read/28702473/malaria-and-chikungunya-detected-using-molecular-diagnostics-among-febrile-kenyan-children
#9
Jesse Waggoner, Julie Brichard, Francis Mutuku, Bryson Ndenga, Claire Jane Heath, Alisha Mohamed-Hadley, Malaya K Sahoo, John Vulule, Martina Lefterova, Niaz Banaei, Dunstan Mukoko, Benjamin A Pinsky, A Desiree LaBeaud
BACKGROUND: In sub-Saharan Africa, malaria is frequently overdiagnosed as the cause of an undifferentiated febrile illness, whereas arboviral illnesses are presumed to be underdiagnosed. METHODS: Sera from 385 febrile Kenyan children, who presented to 1 of 4 clinical sites, were tested using microscopy and real-time molecular assays for dengue virus (DENV), chikungunya virus (CHIKV), malaria, and Leptospira. RESULTS: Malaria was the primary clinical diagnosis for 254 patients, and an arboviral infection (DENV or CHIKV) was the primary diagnosis for 93 patients...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28681816/clinical-and-laboratory-profile-of-dengue-viral-infections-in-and-around-mangalore-india
#10
Tina Damodar, Meena Dias, Reeta Mani, K A Shilpa, Ashwini Manoor Anand, V Ravi, Jutang Tiewsoh
BACKGROUND: Dengue (DEN) is being recognised as the world's major emerging tropical disease. Clinically, DEN may resemble other infections such as malaria, leptospirosis, and typhoid, and thus, laboratory investigations are required for definitive diagnosis. Secondary DEN infection, caused most often by dengue virus (DENV) serotypes 2 and 3, is known to present with severe disease manifestations. This study was undertaken to examine the clinical and laboratory profile of DEN viral infections and to determine the circulating serotypes in and around Mangalore, India...
April 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28654231/enhanced-adhesion-of-mosquitoes-to-rough-surfaces
#11
Leila Pashazanusi, Baraka Lwoya, Shreyas Oak, Tushar Khosla, Julie N L Albert, Yu Tian, Geetha Bansal, Nirbhay Kumar, Noshir S Pesika
Insects and small animals capable of adhering reversibly to a variety of surfaces employ the unique design of the distal part of their legs. In the case of mosquitoes, their feet are composed of thousands of micro- and nanoscale protruding structures, which impart superhydrophobic properties. Previous research has shown that the superhydrophobic nature of the feet allows mosquitoes to land on water, which is necessary for their reproduction cycle. Here, we show that van der Waals interactions are the main adhesion mechanism employed by mosquitoes to adhere to various surfaces...
July 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28645716/guide-to-active-vaccine-safety-surveillance-report-of-cioms-working-group-on-vaccine-safety-executive-summary
#12
U Heininger, K Holm, I Caplanusi, S R Bailey
In 2013, the Council for International Organizations of Medical Sciences (CIOMS) created a Working Group on Vaccine Safety (WG) to address unmet needs in the area of vaccine pharmacovigilance. Generating reliable data about specific vaccine safety concerns is becoming a priority due to recent progress in the development and deployment of new vaccines of global importance, as well as novel vaccines targeting diseases specifically endemic to many resource-limited countries (RLCs), e.g. malaria, dengue. The WG created a Guide to Active Vaccine Safety Surveillance (AVSS) to assist national regulatory authorities and national immunization program officers in RLCs in determining the best course of action with regards to non-routine pharmacovigilance activities, when confronted with a launch of a new vaccine or a vaccine that is new to their country...
July 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28636161/infinity-sperm-storage-the-gift-that-keeps-on-giving
#13
Gauthier Schang, Beatriz Fernandez-Fuertes, Samantha C Lean, Alexandra L Nguyen, Osvaldo Bogado Pascottini
Female Drosophila retain sperm for up to two weeks post-copulation in a network of storage organs includng the bursa, the seminal receptacle, and the spermathecae. This image shows the seminal receptacle of a Drosophila melanogaster female, 2-hrs post-copulation between a LHM (wild-type) female with a Protamine B (green), β-Tubulin (blue) fluorescently tagged male, whose sperm can be visualized within the female. This 'infinity' structure of the seminal receptacle resembles the tubular coil that allows for the storage of very long sperm relative to female body size -up to 20 times the length of the female in some Drosophila species...
June 21, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28602240/olfactory-learning-and-chemical-ecology-of-olfaction-in-disease-vector-mosquitoes-a-life-history-perspective
#14
REVIEW
Eleanor K Lutz, Chloé Lahondère, Clément Vinauger, Jeffrey A Riffell
Mosquitoes transmit many debilitating diseases including malaria, dengue and Zika. Odors mediate behaviors that directly impact disease transmission (blood-feeding) as well as life history events that contribute to mosquito survival and fitness (mating and oviposition, nectar foraging, larval foraging and predator avoidance). In addition to innate olfaction-mediated behaviors, mosquitoes rely on olfactory experience throughout their life to inform advantageous choices in many of these important behaviors. Previous reviews have addressed either the chemical ecology of mosquitoes, or olfactory-driven behaviors including host-feeding or oviposition...
April 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/28598068/early-recognition-of-malaria-or-dengue-in-thrombocytopenic-febrile-illness
#15
M K Bhatnagar, Rakesh Kumar Jagdish, Satender Kumar Yadav, Ritika Sud
No abstract text is available yet for this article.
May 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28596841/targeting-endosomal-acidification-by-chloroquine-analogs-as-a-promising-strategy-for-the-treatment-of-emerging-viral-diseases
#16
REVIEW
Md Abdul Alim Al-Bari
Emerging viruses such as HIV, dengue, influenza A, SARS coronavirus, Ebola, and other viruses pose a significant threat to human health. Majority of these viruses are responsible for the outbreaks of pathogenic lethal infections. To date, there are no effective therapeutic strategies available for the prophylaxis and treatment of these infections. Chloroquine analogs have been used for decades as the primary and most successful drugs against malaria. Concomitant with the emergence of chloroquine-resistant Plasmodium strains and a subsequent decrease in the use as antimalarial drugs, other applications of the analogs have been investigated...
February 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28573466/wolbachia-spreading-dynamics-in-mosquitoes-with-imperfect-maternal-transmission
#17
Bo Zheng, Moxun Tang, Jianshe Yu, Junxiong Qiu
Mosquitoes are primary vectors of life-threatening diseases such as dengue, malaria, and Zika. A new control method involves releasing mosquitoes carrying bacterium Wolbachia into the natural areas to infect wild mosquitoes and block disease transmission. In this work, we use differential equations to describe Wolbachia spreading dynamics, focusing on the poorly understood effect of imperfect maternal transmission. We establish two useful identities and employ them to prove that the system exhibits monomorphic, bistable, and polymorphic dynamics, and give sufficient and necessary conditions for each case...
June 1, 2017: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/28560654/newer-vaccines-against-mosquito-borne-diseases
#18
Anju Aggarwal, Neha Garg
Mosquitos are responsible for a number of protozoal and viral diseases. Malaria, dengue, Japanese encephalitis (JE) and chikungunya epidemics occur commonly all over the world, leading to marked mortality and morbidity in children. Zika, Yellow fever and West Nile fever are others requiring prevention. Environmental control and mosquito bite prevention are useful in decreasing the burden of disease but vaccination has been found to be most cost-effective and is the need of the hour. RTS,S/AS01 vaccine is the first malaria vaccine being licensed for use against P...
May 31, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28505314/diversity-of-mosquitoes-diptera-culicidae-attracted-to-human-subjects-in-rubber-plantations-secondary-forests-and-villages-in-luang-prabang-province-northern-lao-pdr
#19
Julie-Anne A Tangena, Phoutmany Thammavong, Naritsara Malaithong, Thavone Inthavong, Phuthasone Ouanesamon, Paul T Brey, Steve W Lindsay
The impact of the rapid expansion of rubber plantations in South-East Asia on mosquito populations is uncertain. We compared the abundance and diversity of adult mosquitoes using human-baited traps in four typical rural habitats in northern Lao PDR: secondary forests, immature rubber plantations, mature rubber plantations, and villages. Generalized estimating equations were used to explore differences in mosquito abundance between habitats, and Simpson's diversity index was used to measure species diversity...
May 15, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28497875/comparison-of-the-tracheal-systems-of-anopheles-sinensis-and-aedes-togoi-larvae-using-synchrotron-x-ray-microscopic-computed-tomography-respiratory-system-of-mosquito-larvae-using-sr-%C3%AE-ct
#20
Young-Ran Ha, Jeongeun Ryu, Eunseop Yeom, Sang-Joon Lee
Mosquito-borne diseases, such as malaria, dengue fever, and Zika virus, are serious global health issues. Vector control may be an important strategy in reducing the mortality caused by these diseases. The respiratory system of mosquito larvae in the water has to inhale atmospheric oxygen as aquatic organisms. In this study, the three-dimensional (3D) structures of the dorsal longitudinal trunks (DLTs) of the tracheal systems of Anopheles sinensis and Aedes togoi were compared using synchrotron X-ray microscopic computed tomography...
May 12, 2017: Microscopy Research and Technique
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