Read by QxMD icon Read


Mark Hoppé, Ottmar F Hueter, Andy Bywater, Philip Wege, Peter Maienfisch
Malaria is a vector-borne and life-threatening disease caused by parasites that are transmitted to people through the bites of infected female Anopheles mosquitoes. The vector control insecticide market represents a small fraction of the crop protection market and is estimated to be valued at up to $500 million at the active ingredient level. Insecticide resistance towards the current WHOPES-approved products urgently requires the development of new tools to protect communities against the transmission of malaria...
October 2016: Chimia
Jérôme Casas, Claudio Lazzari, Teresita Insausti, Pascal Launois, Florence Fouque
Major emergency efforts are being mounted for each vector-borne disease epidemiological crisis anew, while knowledge about the biology of arthropods vectors is dwindling slowly but continuously, as is the number of field entomologists. The discrepancy between the rates of production of knowledge and its use and need for solving crises is widening, in particular due to the highly differing time spans of the two concurrent processes. A worldwide web based search using multiple key words and search engines of onsite and online courses in English, Spanish, Portuguese, French, Italian and German concerned with the biology of vectors identified over 140 courses...
October 13, 2016: Memórias do Instituto Oswaldo Cruz
Fernando J Andrade-Narvaez, Elsy Nalleli Loría-Cervera, Erika I Sosa-Bibiano, Nicole R Van Wynsberghe
American cutaneous leishmaniasis (ACL) is a major public health problem caused by vector-borne protozoan intracellular parasites from the genus Leishmania, subgenera Viannia and Leishmania. Asymptomatic infection is the most common outcome after Leishmania inoculation. There is incomplete knowledge of the biological processes explaining the absence of signs or symptoms in most cases while other cases present a variety of clinical findings. Most studies of asymptomatic infection have been conducted in areas of endemic visceral leishmaniasis...
October 2016: Memórias do Instituto Oswaldo Cruz
M H Reiskind, R H Griffin, M S Janairo, K A Hopperstad
Knowledge of the distribution of arthropod vectors across a landscape is important in determining the risk for vector-borne disease. This has been well explored for ticks, but not for mosquitoes, despite their importance in the transmission of a variety of pathogens. This study examined the importance of habitat, habitat edges, and the scale at which mosquito abundance and diversity vary in a rural landscape by trapping along transects from grassland areas into forest patches. Significant patterns of vector diversity and distinct mosquito assemblages across habitats were found...
October 19, 2016: Medical and Veterinary Entomology
Matthew Shortus, Jennie Musto, Hugo Bugoro, Charles Butafa, Alison Sio, Cynthia Joshua
PROBLEM: The close quartering and exposed living conditions in evacuation centres and the potential increase in vector density after flooding in Solomon Islands resulted in an increased risk of exposure for the occupants to vectorborne diseases. CONTEXT: In April 2014, Solomon Islands experienced a flash flooding event that affected many areas and displaced a large number of people. In the capital, Honiara, nearly 10 000 people were housed in emergency evacuation centres at the peak of the post-flood emergency...
January 2016: Western Pacific Surveillance and Response Journal: WPSAR
Józef Piotr Knap, Michał Andrzej Targowski
Pappataci (sandfly fever) is a viral (RNA Phlebovirus) vector-borne zoonosis transmitted to men by small Phlebotomus mosquitous. This disease fulfill the international criteria of "emerging disease". Despite of that, pappataci fever is a little known disease brought into Poland. Distribution of disease includes: Mediterranean region, Central Asia and Indian Peninsula. On the basis of pertinent literature and own personal experience, the authors described etiopathogenesis, epidemiology and clinical picture of sandfly fever...
September 29, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
Berlin Londono-Renteria, Jenny C Cardenas, Andrea Troupin, Tonya M Colpitts
Chronic exposure to antigens may favor the production of IgG4 antibodies over other antibody types. Recent studies have shown that up to a 30% of normal human IgG4 is bi-specific and is able to recognize two antigens of different nature. A requirement for this specificity is the presence of both eliciting antigens in the same time and at the same place where the immune response is induced. During transmission of most vector-borne diseases, the pathogen is delivered to the vertebrate host along with the arthropod saliva during blood feeding and previous studies have shown the existence of IgG4 antibodies against mosquito salivary allergens...
2016: Frontiers in Immunology
(no author information available yet)
No abstract text is available yet for this article.
October 2016: Canadian Family Physician Médecin de Famille Canadien
Xianghong Zhang, Sanyi Tang, Robert A Cheke, Huaiping Zhu
Dengue fever has rapidly become the world's most common vector-borne viral disease. Use of endosymbiotic Wolbachia is an innovative technology to prevent vector mosquitoes from reproducing and so break the cycle of dengue transmission. However, strategies such as population eradication and replacement will only succeed if appropriate augmentations with Wolbachia-infected mosquitoes that take account of a variety of factors are carried out. Here, we describe the spread of Wolbachia in mosquito populations using an impulsive differential system with four state variables, incorporating the effects of cytoplasmic incompatibility and the augmentation of Wolbachia-infected mosquitoes with different sex ratios...
October 12, 2016: Bulletin of Mathematical Biology
Diane G Edmondson, Sabitha Prabhakaran, Steven J Norris, Amy J Ullmann, Joe Piesman, Marc Dolan, Christian Probst, Christiane Radzimski, Winfried Stöcker, Lars Komorowski
Lyme borreliosis is caused by tick-transmitted spirochetes of the Borrelia burgdorferi sensu lato group and is the most common vector-borne disease in the United States and Europe. Outer surface protein C (OspC) is a 23 kDa outer surface lipoprotein expressed during spirochete transmission from the tick to the vertebrate host. In a previous study, we found that immunization with a recombinant disulfide-bridged dimeric form of OspC (D-OspC) stimulates increased antibody responses relative to immunization with commonly employed monomeric OspC...
October 12, 2016: Clinical and Vaccine Immunology: CVI
Cristina Fevola, Kristian M Forbes, Satu Mäkelä, Niina Putkuri, Heidi C Hauffe, Hannimari Kallio-Kokko, Jukka Mustonen, Anne J Jääskeläinen, Antti Vaheri
BACKGROUND: The emergence and re-emergence of zoonotic and vector-borne diseases are increasing in Europe. Prominent rodent-borne zoonotic viruses include Puumala hantavirus (PUUV; the causative agent of nephropathia epidemica, NE), lymphocytic choriomeningitis virus (LCMV), and orthopoxviruses (OPV). In addition, Ljungan virus (LV) is considered a potentially zoonotic virus. OBJECTIVE: The aim of this study was to compare clinical picture between acute PUUV patients with and without additional rodent-borne viral infections, to investigate if concurrent infections influence disease severity...
October 4, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
Emmanuel Chanda, Birkinesh Ameneshewa, Magaran Bagayoko, John M Govere, Michael B Macdonald
The increasing global threat of emerging and re-emerging vector-borne diseases (VBDs) poses a serious health problem. The World Health Organization (WHO) recommends integrated vector management (IVM) strategy for combating VBD transmission. An IVM approach requires entomological knowledge, technical and infrastructure capacity, and systems facilitating stakeholder collaboration. In sub-Saharan Africa, successful operational IVM experience comes from relatively few countries. This article provides an update on the extent to which IVM is official national policy, the degree of IVM implementation, the level of compliance with WHO guidelines, and concordance in the understanding of IVM, and it assesses the operational impact of IVM...
October 3, 2016: Trends in Parasitology
Girish Neelakanta, Hameeda Sultana
Arthropods transmit several medically important arboviruses that cause diseases in humans. Therapeutic strategies to treat or prevent diseases transmitted by the arthropods are limiting. Understanding the role of arthropod gut receptors in the interactions with various arboviruses would provide important means for the development of a strong anti-vector vaccine. In this review, we summarize some of the potential findings in the field of arthropod gut receptors for tick-borne or mosquito-borne viruses and discuss their relevance in the development of a broad-spectrum transmission-blocking vaccine to treat or control various diseases caused by arboviruses...
August 2016: Current Opinion in Insect Science
Glady Hazitha Samuel, Zach N Adelman, Kevin M Myles
The transmissibility of vector borne viruses can be affected by a combination of factors, both extrinsic (climatic changes, temperature, urbanization, among others) and intrinsic (genetics, life span, immunity, among others). Temperature is of particular importance since the insect vectors of arthropod-borne viruses (arboviruses) are ectothermic and acutely susceptible to temperature changes. Modeling suggests that with increasing global temperature and urbanization, arboviral diseases will continue to emerge or reemerge...
August 2016: Current Opinion in Insect Science
David S Younger
Lyme disease is caused by the bacterium Borrelia burgdorferi and is transmitted to humans through the bite of infected blacklegged ticks. According to the Centers for Disease Control and Prevention, it is the most commonly reported vector-borne illness and the fifth most common disease in the National Notifiable Diseases Surveillance System. If left untreated, infection disseminates to the nervous system. The nonhuman primate model of Lyme disease of the nervous system, or Lyme neuroborreliosis, accurately mimics the aspects of the human illness...
November 2016: Neurologic Clinics
Zachary S Brown, Randall A Kramer, David Ocan, Christine Oryema
BACKGROUND: Insecticide-based tools remain critical for controlling vector-borne diseases in Uganda. Securing public support from targeted populations for such tools is an important component in sustaining their long-run effectiveness. Yet little quantitative evidence is available on the perceived benefits and costs of vector control programmes among targeted households. METHODS: A survey was administered to a clustered random sample of 612 households in Gulu and Oyam districts of northern Uganda during a period of very high malaria transmission and following a pilot indoor residual spray (IRS) programme...
October 6, 2016: Infectious Diseases of Poverty
Setareh Jahfari, Agnetha Hofhuis, Manoj Fonville, Joke van der Giessen, Wilfrid van Pelt, Hein Sprong
BACKGROUND: Tick-borne diseases are the most prevalent vector-borne diseases in Europe. Knowledge on the incidence and clinical presentation of other tick-borne diseases than Lyme borreliosis and tick-borne encephalitis is minimal, despite the high human exposure to these pathogens through tick bites. Using molecular detection techniques, the frequency of tick-borne infections after exposure through tick bites was estimated. METHODS: Ticks, blood samples and questionnaires on health status were collected from patients that visited their general practitioner with a tick bite or erythema migrans in 2007 and 2008...
October 2016: PLoS Neglected Tropical Diseases
Nicoletta Vonesch, Maria Concetta D'Ovidio, Paola Melis, Maria Elena Remoli, Maria Grazia Ciufolini, Paola Tomao
INTRODUCTION: Risks associated with climate change are increasing worldwide and the global effects include altered weather and precipitation patterns, rising temperatures and others; human health can be affected directly and indirectly. This paper is an overview of literature regarding climate changes, their interaction with vector-borne diseases and impact on working population. MATERIALS AND METHODS: Articles regarding climate changes as drivers of vector-borne diseases and evidences of occupational cases have been picked up by public databank...
July 2016: Annali Dell'Istituto Superiore di Sanità
Ayse Sayili, Aysegul Taylan Ozkan, Henk D F H Schallig
Visceral leishmaniasis (VL) is a vector-borne disease widespread in the Mediterranean basin, including Cyprus. During the last decades no cases were notified from northern Cyprus, but herein three cases of VL (female: 2, male: 1, median age: 24.6 months) diagnosed during their hospital admission between January 2011 and December 2012 are reported. Diagnosis was based on clinical findings; 1 ≥ 1/64 titer positivity of immunofluorescence antibodies, Leishmania amastigotes in Giemsa-stained slides of bone marrow, as well as molecular identification confirmed that in all three the infecting pathogen was Leishmania infantum Fever, splenomegaly, and hepatomegaly were the typical clinical findings...
October 3, 2016: American Journal of Tropical Medicine and Hygiene
Abdallah M Samy, Arwa H Elaagip, Mohamed A Kenawy, Constância F J Ayres, A Townsend Peterson, Doaa E Soliman
Rapid emergence of most vector-borne diseases (VBDs) may be associated with range expansion of vector populations. Culex quinquefasciatus Say 1823 is a potential vector of West Nile virus, Saint Louis encephalitis virus, and lymphatic filariasis. We estimated the potential distribution of Cx. quinquefasciatus under both current and future climate conditions. The present potential distribution of Cx. quinquefasciatus showed high suitability across low-latitude parts of the world, reflecting the current distribution of the species...
2016: PloS One
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"