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Vector borne diseases

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https://www.readbyqxmd.com/read/28331833/survey-of-spatial-distribution-of-vector-borne-disease-in-neighborhood-dogs-in-southern-brazil
#1
Caroline Constantino, Edson Ferraz Evaristo de Paula, Ana Pérola Drulla Brandão, Fernando Ferreira, Rafael Felipe da Costa Vieira, Alexander Welker Biondo
Neighborhood dogs may act as reservoirs and disseminators of vector-borne diseases in urban areas. Accordingly, the aim of this study was to ascertain the health status and the vector-borne pathogens infecting dogs living in public areas with high levels of human movement in the city of Curitiba, southern Brazil. Blood samples from 21 neighborhood dogs that were found in nine of 22 bus stations and two public parks were subjected to a complete blood cell (CBC) count, serum biochemical profiling, a commercial rapid ELISA test and a commercial real-time PCR panel of vector-borne diseases...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28329029/global-warming-and-global-decrease-in-vector-borne-disease-prevalence-and-mortality
#2
Philippe Gautret, Philippe Parola, Didier Raoult
No abstract text is available yet for this article.
January 18, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28327498/activity-of-sulfa-drugs-and-their-combinations-against-stationary-phase-b-burgdorferi-in-vitro
#3
Jie Feng, Shuo Zhang, Wanliang Shi, Ying Zhang
Lyme disease is a most common vector-borne disease in the US. Although the majority of Lyme patients can be cured with the standard two- to four-week antibiotic treatment, at least 10%-20% of patients continue to suffer from prolonged post-treatment Lyme disease syndrome (PTLDS). While the cause for this is unclear, one possibility is that persisting organisms are not killed by current Lyme antibiotics. In our previous studies, we screened an FDA drug library and an NCI compound library on B. burgdorferi and found some drug hits including sulfa drugs as having good activity against B...
March 22, 2017: Antibiotics
https://www.readbyqxmd.com/read/28319627/what-s-eating-you-lone-star-tick-amblyomma-americanum
#4
H Harris Reynolds, Dirk M Elston
Amblyomma americanum, also known as the lone star tick, is found in much of the eastern United States. Since the mid-20th century, the lone star tick has been implicated in human disease. Today, A americanum remains an important vector for tick-borne illness. In addition to others, species of Rickettsia, Ehrlichia, and Borrelia are all transmitted by the lone star tick. Recently described conditions such as Southern tick-associated rash illness and anaphylaxis to red meat following tick bites have been attributed to the lone star tick...
February 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28316896/vector-competence-of-anopheles-and-culex-mosquitoes-for-zika-virus
#5
Brittany L Dodson, Jason L Rasgon
Zika virus is a newly emergent mosquito-borne flavivirus that has caused recent large outbreaks in the new world, leading to dramatic increases in serious disease pathology including Guillain-Barre syndrome, newborn microcephaly, and infant brain damage. Although Aedes mosquitoes are thought to be the primary mosquito species driving infection, the virus has been isolated from dozens of mosquito species, including Culex and Anopheles species, and we lack a thorough understanding of which mosquito species to target for vector control...
2017: PeerJ
https://www.readbyqxmd.com/read/28316425/molecular-characterization-of-leishmania-parasites-isolated-from-sandflies-species-of-a-zoonotic-cutaneous-leishmaniasis-in-musiyan-south-west-iran
#6
Farzaneh Kavarizadeh, Shahram Khademvatan, Babak Vazirianzadeh, Mohammad Hossein Feizhaddad, Mehdi Zarean
Cutaneous leishmaniasis (CL) is vector borne parasitic disease, considered as public health problem especially in border of Iran and Iraq, Dehloran County (Musian district). The aim of this study was molecular identification of Leishmania parasites in sandfly as vectors of Leishmaniasis. Totally 280 female sandflies were trapped by sticky traps from 7 rural areas of Musiyan in September-November 2012. All sandflies were identified using morphological characters of the head and abdominal terminalia. DNA was extracted from female sandflies and Leishmania was identified using PCR and sequencing...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28316387/classico-molecular-targeting-of-oligopeptidase-b-cysteine-protease-and-variable-surface-glycoprotein-vsg-genes-of-trypanosoma-evansi
#7
Ruchi Singh Gaur, Vikrant Sudan, Amit Kumar Jaiswal, Amit Singh, Daya Shanker
Trypanosomosis or Surra can rightly be attributed as the most economically important vector-borne haemoprotozoan disease encountering India. Surra infected chronic cases show almost similar types of signs and symptoms often confusing it with other haemoprotozoan infections, thereby, making it prerequisite for the development of aspecific and sensitive technique for its detection in susceptible animals. Blood microscopy and serology suffers from the hands of lack of sensitivity and specificity thereby leaving molecular detection techniques as one of the promising alternative...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28315955/symbiosis-with-systemic-fungal-endophytes-promotes-host-escape-from-vector-borne-disease
#8
L I Perez, P E Gundel, H J Marrero, A González Arzac, M Omacini
Plants interact with a myriad of microorganisms that modulate their interactions within the community. A well-described example is the symbiosis between grasses and Epichloë fungal endophytes that protects host plants from herbivores. It is suggested that these symbionts could play a protective role for plants against pathogens through the regulation of their growth and development and/or the induction of host defences. However, other endophyte-mediated ecological mechanisms involved in disease avoidance have been scarcely explored...
March 18, 2017: Oecologia
https://www.readbyqxmd.com/read/28304356/spatially-correlated-time-series-and-ecological-niche-analysis-of-cutaneous-leishmaniasis-in-afghanistan
#9
Oyelola A Adegboye, Majeed Adegboye
Leishmaniasis is the third most common vector-borne disease and a very important protozoan infection. Cutaneous leishmaniasis is one of the most common types of leishmaniasis infectious diseases with up to 1.2 million occurrences of new cases each year worldwide. A dynamic transmission multivariate time series model was applied to the data to account for overdispersion and evaluate the effects of three environmental layers as well as seasonality in the data. Furthermore, ecological niche modeling was used to study the geographically suitable conditions for cutaneous leishmaniasis using temperature, precipitation and altitude as environmental layers, together with the leishmaniasis presence data...
March 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28303129/there-is-a-method-to-the-madness-strategies-to-study-host-complement-evasion-by-lyme-disease-and-relapsing-fever-spirochetes
#10
REVIEW
Ashley L Marcinkiewicz, Peter Kraiczy, Yi-Pin Lin
Lyme disease and relapsing fever are caused by various Borrelia species. Lyme disease borreliae, the most common vector-borne pathogens in both the U.S. and Europe, are transmitted by Ixodes ticks and disseminate from the site of tick bites to tissues leading to erythema migrans skin rash, arthritis, carditis, and neuroborreliosis. Relapsing fever borreliae, carried by ticks and lice, trigger reoccurring fever episodes. Following transmission, spirochetes survive in the blood to induce bacteremia at the early stages of infection, which is thought to promote evasion of the host complement system...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28302072/imported-arboviral-infections-in-italy-july-2014-october-2015-a-national-reference-laboratory-report
#11
Claudia Fortuna, Maria Elena Remoli, Caterina Rizzo, Eleonora Benedetti, Cristiano Fiorentini, Antonino Bella, Claudio Argentini, Francesca Farchi, Concetta Castilletti, Maria Rosaria Capobianchi, Lorenzo Zammarchi, Alessandro Bartoloni, Nadia Zanchetta, Maria Rita Gismondo, Luca Ceccherini Nelli, Giustina Vitale, Franco Baldelli, Pierlanfranco D'Agaro, Giuseppe Sodano, Giovanni Rezza, Giulietta Venturi
BACKGROUND: Imported cases of infections due to Dengue (DENV) and Chikungunya (CHIKV) viruses and, more recently, Zika virus (ZIKV) are commonly reported among travelers returning from endemic regions. In areas where potentially competent vectors are present, the risk of autochthonous transmission of these vector-borne pathogens is relatively high. Laboratory surveillance is crucial to rapidly detect imported cases in order to reduce the risk of transmission. This study describes the laboratory activity performed by the National Reference Laboratory for Arboviruses (NRLA) at the Italian National Institute of Health in the period from July 2014 to October 2015...
March 16, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28299883/a-novel-bluetongue-virus-serotype-3-strain-in-tunisia-november-2016
#12
S Sghaier, A Lorusso, O Portanti, M Marcacci, M Orsini, M E Barbria, A S Mahmoud, S Hammami, A Petrini, G Savini
Since 1998, southern Europe has experienced multiple incursions of different serotypes and topotypes of Bluetongue virus, a vector-borne transmitted virus, the causative agent of Bluetongue (BT), a major disease of ruminants. Some of these incursions originated from northern Africa, likely because of wind-blown dissemination of infected midges. In this report, we describe the detection and whole genome characterization of a novel BTV-3 strain identified in a symptomatic sheep in Tunisia. Sequences were immediately deposited with the GenBank Database under Accession Nos KY432369-KY432378...
March 15, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28298609/the-impact-of-temperature-changes-on-vector-borne-disease-transmission-culicoides-midges-and-bluetongue-virus
#13
Samuel P C Brand, Matt J Keeling
It is a long recognized fact that climatic variations, especially temperature, affect the life history of biting insects. This is particularly important when considering vector-borne diseases, especially in temperate regions where climatic fluctuations are large. In general, it has been found that most biological processes occur at a faster rate at higher temperatures, although not all processes change in the same manner. This differential response to temperature, often considered as a trade-off between onward transmission and vector life expectancy, leads to the total transmission potential of an infected vector being maximized at intermediate temperatures...
March 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28298245/serological-and-molecular-prevalence-of-canine-vector-borne-diseases-cvbds-in-korea
#14
Guk-Hyun Suh, Kyu-Sung Ahn, Jong-Ho Ahn, Ha-Jung Kim, Christian Leutenegger, SungShik Shin
BACKGROUND: Previous surveys in dogs from Korea indicated that dogs are exposed to a variety of vector- borne pathogens, but perception for a nation-wide canine vector-borne disease (CVBD) occurrence has been missing. We report here results of both serological and molecular prevalence studies for major CVBDs of dogs from all over the South Korean Peninsula except for Jeju Island. RESULTS: Serological survey of 532 outdoor dogs revealed the highest prevalence for Dirofilaria immitis (25...
March 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28296373/-the-fourth-horseman-the-yellow-fever
#15
Alfonso Vallejos-Parás, David Alejandro Cabrera-Gaytán
Dengue virus three, Chikunguya and Zika have entered the national territory through the south of the country. Cases and outbreaks of yellow fever have now been identified in the Americas where it threatens to expand. Although Mexico has a robust epidemiological surveillance system for vector-borne diseases, our country must be alert in case of its possible introduction into the national territory. This paper presents theoretical assumptions based on factual data on the behavior of yellow fever in the Americas, as well as reflections on the epidemiological surveillance of vector-borne diseases...
March 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28291638/lyme-disease-emergency-department-considerations
#16
Nathan D Applegren, Chadd K Kraus
BACKGROUND: Lyme disease (LD) is the most common vector-borne illness in North America. Reported cases of LD have increased from approximately 10,000 cases annually in 1991 to >25,000 cases in 2014. Greater recognition, enhanced surveillance, and public education have contributed to the increased prevalence, as have geographic expansion and the number of infected ticks. Cases are reported primarily in the Northeastern United States, Wisconsin, and Minnesota, with children having the highest incidence of LD among all age groups...
March 10, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28290975/death-of-military-working-dogs-due-to-bartonella-vinsonii-subspecies-berkhoffii-genotype-iii-endocarditis-and-myocarditis
#17
Leslie M Shelnutt, Nandhakumar Balakrishnan, Justin DeVanna, Kenneth L Batey, Edward B Breitschwerdt
OBJECTIVES: As a result of extensive field-related activities, military working dogs (MWDs) have an increased occupational risk for acquiring vector-borne infectious diseases. METHODS: Indirect fluorescent antibody, Bartonella alpha-proteobacteria growth medium enrichment culture, and 16-23S Bartonella intergenic transcribed spacer polymerase chain reaction were performed using blood, serum, or tissue specimens. RESULTS: Endocarditis was diagnosed in three MWDs infected with Bartonella vinsonii subspecies (subsp...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28288773/serological-detection-of-antibodies-to-anaplasma-spp-borrelia-burgdorferi-sensu-lato-and-ehrlichia-canis-and-of-dirofilaria-immitis-antigen-in-dogs-from-costa-rica
#18
Víctor M Montenegro, Marta C Bonilla, Darwin Kaminsky, Juan José Romero-Zúñiga, Susanne Siebert, Friederike Krämer
In a study in Costa Rica 314 serum samples from dogs throughout all seven provinces were tested using a commercial kit for the detection of circulating antibodies against Anaplasma spp., Borrelia burgdorferi sensu lato and Ehrlichia canis, and of circulating antigen of Dirofilaria immitis. A total of 6.4% (20/314) and 38.2% (120/314) were positive for Anaplasma spp. (An) and E. canis (Ec) antibodies. Overall, 8.0% (25/314) were positive for D. immitis (Di) antigen. One single dog reacted positive with B. burgdorferi s...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28288759/feline-and-canine-leishmaniosis-and-other-vector-borne-diseases-in-the-aeolian-islands-pathogen-and-vector-circulation-in-a-confined-environment
#19
Domenico Otranto, Ettore Napoli, Maria Stefania Latrofa, Giada Annoscia, Viviana Domenica Tarallo, Grazia Greco, Eleonora Lorusso, Laura Gulotta, Luigi Falsone, Fabrizio Solari Basano, Maria Grazia Pennisi, Katrin Deuster, Gioia Capelli, Filipe Dantas-Torres, Emanuele Brianti
Vector-borne diseases (VBDs) are prevalently investigated in dogs. Studies on feline VBDs are scant, though feline leishmaniosis (FeL) is increasingly recognised as a disease of cats in endemic areas. Comprehensive investigations on the distribution of VBDs in populations of cats and dogs living in relatively small geographical areas, such as islands, are currently lacking. In this study the prevalence of Leishmania infantum and other VBD pathogens was assessed in cohorts of cats and dogs living in the Aeolian Islands...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28285789/zika-virus-history-epidemiology-transmission-and-clinical-presentation
#20
REVIEW
Byung-Hak Song, Sang-Im Yun, Michael Woolley, Young-Min Lee
Zika virus (ZIKV), a mosquito-borne positive-stranded RNA virus of the family Flaviviridae (genus Flavivirus), is now causing an unprecedented large-scale outbreak in the Americas. Historically, ZIKV spread eastward from equatorial Africa and Asia to the Pacific Islands during the late 2000s to early 2010s, invaded the Caribbean and Central and South America in 2015, and reached North America in 2016. Although ZIKV infection generally causes no symptoms or only a mild self-limiting illness, it has recently been linked to a rising number of severe neurological diseases, including microcephaly and Guillain-Barré syndrome...
March 3, 2017: Journal of Neuroimmunology
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