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Pesquisa : B01.050.500.131.166.132.832.100.700 [Categoria DeCS]
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  1 / 207 MEDLINE  
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[PMID]:28399292
[Au] Autor:Neelakanta G; Sultana H; Sonenshine DE; Marconi RT
[Ad] Endereço:Center for Molecular Medicine, College of Sciences, Old Dominion University, Norfolk, VA 23529 (gneelaka@odu.edu; hsultana@odu.edu ).
[Ti] Título:An In Vitro Blood-Feeding Method Revealed Differential Borrelia turicatae (Spirochaetales: Spirochaetaceae) Gene Expression After Spirochete Acquisition and Colonization in the Soft Tick Ornithodoros turicata (Acari: Argasidae).
[So] Source:J Med Entomol;54(2):441-449, 2017 Mar 01.
[Is] ISSN:1938-2928
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In the Midwestern, Southwestern, and Southern part of the United States, the soft tick Ornithodoros turicata transmits the spirochete Borrelia turicatae, the causative agent of relapsing fever in humans. In this study, we report a simplified and an efficient method of in vitro feeding to evaluate O. turicata-B. turicatae interactions. Both nymphal and adult female ticks successfully acquired spirochetes upon in vitro feeding on the B. turicatae-infected blood. We also noted transstadial transmission of spirochetes to adult ticks that were molted from nymphs fed on B. turicatae-infected blood. A differential expression pattern for some of the B. turicatae genes was evident after acquisition and colonization of the vector. The levels of arthropod-associated lipoprotein Alp-mRNA were significantly upregulated and the mRNA levels of factor H binding protein FhbA and immunogenic protein BipA were significantly downregulated in the spirochetes after acquisition into ticks in comparison with spirochetes grown in culture medium. In addition, genes such as bta124 and bta116 were significantly upregulated in spirochetes in unfed ticks in comparison with the levels noted in spirochetes after acquisition. These findings represent an efficient in vitro blood-feeding method to study B. turicatae gene expression after acquisition and colonization in these ticks. In summary, we report that B. turicatae survive and develop in the tick host when acquired by in vitro feeding. We also report that B. turicatae genes are differentially expressed in ticks in comparison with the in vitro-grown cultures, indicating influence of tick environment on spirochete gene expression.
[Mh] Termos MeSH primário: Proteínas de Bactérias/genética
Borrelia/genética
Ornithodoros/microbiologia
Ornithodoros/fisiologia
Febre Recorrente/microbiologia
[Mh] Termos MeSH secundário: Animais
Proteínas de Bactérias/metabolismo
Borrelia/crescimento & desenvolvimento
Borrelia/fisiologia
Comportamento Alimentar
Feminino
Seres Humanos
Masculino
Camundongos
Febre Recorrente/sangue
Spirochaetales/genética
Spirochaetales/crescimento & desenvolvimento
Spirochaetales/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bacterial Proteins)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170804
[Lr] Data última revisão:
170804
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170412
[St] Status:MEDLINE
[do] DOI:10.1093/jme/tjw171


  2 / 207 MEDLINE  
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[PMID]:28150885
[Au] Autor:Kim HJ; Filatov S; Lopez JE; Pérez DE León AA; Teel PD
[Ad] Endereço:Department of Entomology, Texas A&M AgriLife Research, Texas A&M University, College Station, TX, U.S.A.
[Ti] Título:Blood feeding of Ornithodoros turicata larvae using an artificial membrane system.
[So] Source:Med Vet Entomol;31(2):230-233, 2017 Jun.
[Is] ISSN:1365-2915
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:An artificial membrane system was adapted to feed Ornithodoros turicata (Ixodida: Argasidae) larvae from a laboratory colony using defibrinated swine blood. Aspects related to larval feeding and moulting to the first nymphal instar were evaluated. A total of 55.6% of all larvae exposed to the artificial membrane in two experimental groups fed to repletion and 98.0% of all fed larvae moulted. Mortality rates of first instar nymphs differed significantly depending on the sorting tools used to handle engorged larvae (χ = 35.578, P < 0.0001): engorged larvae handled with featherweight forceps showed significantly higher mortality (odds ratio = 4.441) than those handled with a camel-hair brush. Differences in the physical properties of the forceps and camel-hair brush may affect the viability of fragile soft tick larvae even when care and the same technique are used to sort them during experimental manipulations. The current results represent those of the first study to quantify successful feeding to repletion, moulting and post-moulting mortality rates in O. turicata larvae using an artificial membrane feeding system. Applications of the artificial membrane feeding system to fill gaps in current knowledge of soft tick biology and the study of soft tick-pathogen interactions are discussed.
[Mh] Termos MeSH primário: Entomologia/métodos
Ornithodoros/fisiologia
Parasitologia/métodos
[Mh] Termos MeSH secundário: Animais
Comportamento Alimentar
Larva/crescimento & desenvolvimento
Larva/fisiologia
Membranas Artificiais
Muda
Ninfa/crescimento & desenvolvimento
Ornithodoros/crescimento & desenvolvimento
Sus scrofa/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Membranes, Artificial)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170920
[Lr] Data última revisão:
170920
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170203
[St] Status:MEDLINE
[do] DOI:10.1111/mve.12223


  3 / 207 MEDLINE  
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[PMID]:27832805
[Au] Autor:Johnson TL; Fischer RJ; Raffel SJ; Schwan TG
[Ad] Endereço:Laboratory of Zoonotic Pathogens, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
[Ti] Título:Host associations and genomic diversity of Borrelia hermsii in an endemic focus of tick-borne relapsing fever in western North America.
[So] Source:Parasit Vectors;9(1):575, 2016 Nov 10.
[Is] ISSN:1756-3305
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: An unrecognized focus of tick-borne relapsing fever caused by Borrelia hermsii was identified in 2002 when five people became infected on Wild Horse Island in Flathead Lake, Montana. The terrestrial small mammal community on the island is composed primarily of pine squirrels (Tamiasciurus hudsonicus) and deer mice (Peromyscus maniculatus), neither of which was known as a natural host for the spirochete. Thus a 3-year study was performed to identify small mammals as hosts for B. hermsii. METHODS: Small mammals were captured alive on two island and three mainland sites, blood samples were collected and examined for spirochetes, and serological tests performed to detect anti-B. hermsii antibodies. Ornithodoros hermsi ticks were collected and fed on laboratory mice to assess infection. Genomic DNA samples from spirochetes isolated from infected mammals and ticks were analyzed by multilocus sequence typing. RESULTS: Eighteen pine squirrels and one deer mouse had detectable spirochetemias when captured, from which 12 isolates of B. hermsii were established. Most pine squirrels were seropositive, and the five species of sciurids combined had a significantly higher prevalence of seropositive animals than did the other six small mammal species captured. The greater diversity of small mammals on the mainland in contrast to the islands demonstrated that other species in addition to pine squirrels were also involved in the maintenance of B. hermsii at Flathead Lake. Ornithodoros hermsi ticks produced an additional 12 isolates of B. hermsii and multilocus sequence typing identified both genomic groups of B. hermsii described previously, and identified a new genomic subdivision. Experimental infections of deer mice with two strains of B. hermsii demonstrated that these animals were susceptible to infection with spirochetes belonging to Genomic Group II but not Genomic Group I. CONCLUSIONS: Pine squirrels are the primary hosts for the maintenance of B. hermsii on the islands in Flathead Lake, however serological evidence showed that numerous additional species are also involved on the mainland. Future studies testing the susceptibility of several small mammal species to infection with different genetic types of B. hermsii will help define their role as hosts in this and other endemic foci.
[Mh] Termos MeSH primário: Borrelia/classificação
Reservatórios de Doenças/microbiologia
Variação Genética
Febre Recorrente/epidemiologia
Febre Recorrente/microbiologia
[Mh] Termos MeSH secundário: Animais
Anticorpos Antibacterianos/sangue
Borrelia/genética
Borrelia/isolamento & purificação
DNA Bacteriano/genética
DNA Bacteriano/isolamento & purificação
Genótipo
Montana/epidemiologia
Tipagem de Sequências Multilocus
Ornithodoros
Peromyscus
Sciuridae
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Bacterial); 0 (DNA, Bacterial)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171010
[Lr] Data última revisão:
171010
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161112
[St] Status:MEDLINE


  4 / 207 MEDLINE  
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[PMID]:27729267
[Au] Autor:Dupraz M; Toty C; Noël V; Estrada-Pena A; González-Solís J; Boulinier T; Dujardin JP; McCoy KD
[Ad] Endereço:MIVEGEC UMR 5290 CNRS-IRD-UM, Centre IRD, 911 Avenue Agropolis, BP 64501, 34394 Montpellier, France. Electronic address: marlene.dupraz@ird.fr.
[Ti] Título:Linking morphometric and genetic divergence with host use in the tick complex, Ornithodoros capensis sensu lato.
[So] Source:Infect Genet Evol;46:12-22, 2016 Dec.
[Is] ISSN:1567-7257
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Host specific adaptations in parasites can lead to the divergence of conspecific populations. However, this divergence can be difficult to measure because morphological changes may not be expressed or because obvious changes may simply reflect phenotypic plasticity. Combining both genetic and phenotypic information can enable a better understanding of the divergence process and help identify the underlying selective forces, particularly in closely-related species groups. Here, we link genetic and morphometric data to understand divergence patterns within the Ornithodoros (Carios) capensis complex, a group of soft ticks (Argasidae) exploiting colonial seabirds across the globe. Species designations in this complex were historically based on larval morphology and geographic location. However, recent work has suggested that divergence within the group may be at least partially linked to host specificity. We therefore first examined population genetic structure of ticks in relation to host use and geography. These analyses revealed strong structure in relation to host use, both when populations were sympatric and widely allopatric, with a secondary effect of geography. They also demonstrated the presence of several novel and presumably undescribed species exploiting these seabird hosts. We then used geometric morphometrics (landmark and outline analyses) to test whether host-associated genetic divergence is always accompanied by the same phenotypic changes. We found that morphological variation (size and shape) correlated well with genetic structure; tick size and shape varied strongly in relation to host type, and weakly with geography. These results support the hypothesis that speciation in this tick group has been more strongly shaped by host use than by geographic barriers per se. The revealed phenetic patterns now require detailed investigation to link them with host-specific selective forces.
[Mh] Termos MeSH primário: Insetos Vetores/anatomia & histologia
Insetos Vetores/genética
Ornithodoros/anatomia & histologia
Ornithodoros/genética
[Mh] Termos MeSH secundário: Animais
Aves/parasitologia
Análise por Conglomerados
Feminino
Genética Populacional
Insetos Vetores/patogenicidade
Insetos Vetores/fisiologia
Masculino
Ornithodoros/patogenicidade
Ornithodoros/fisiologia
Filogenia
Doenças Transmitidas por Carrapatos/transmissão
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171010
[Lr] Data última revisão:
171010
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161106
[St] Status:MEDLINE


  5 / 207 MEDLINE  
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[PMID]:27625415
[Au] Autor:Costa GC; Soares AC; Pereira MH; Gontijo NF; Sant'Anna MR; Araujo RN
[Ad] Endereço:Physiology of Hematophagous Insects Laboratory, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil.
[Ti] Título:Physiological characterization of the hematophagy of Ornithodoros rostratus (Acari: Argasidae) on live hosts.
[So] Source:J Exp Biol;219(Pt 22):3656-3664, 2016 Nov 15.
[Is] ISSN:1477-9145
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Ornithodoros rostratus is an argasid tick and its importance is based on its hematophagy and the resulting transmission of pathogens such as Rickettsia rickettsii and Coxiella burnetii to its vertebrate hosts. In the face of a lack of physiological studies related to hematophagy in argasid ticks, this paper aims to identify and characterize the events that occur throughout the feeding by O. rostratus on live hosts. Electrical signals and alterations on the feeding site were monitored using intravital microscopy and electromyography. The analyses allowed for the characterization of four distinct events: suction, salivation, chelicerae movements and inactivity. Feeding was divided into two distinct phases: (1) penetration of mouthparts (when only salivation and chelicerae movements occurred) and the formation of the feeding pool (salivation and chelicerae movements with the first signs of suction) and (2) engorgement, during which chelicerae movements ceased and blood intake took place in feeding complexes (salivation followed by suction). Variations in patterns of the electrical signals, suction frequency and salivation showed four distinct sub-phases: (2a) suction with electrical signals of irregular shape, increased suction frequency and decreased salivation frequency throughout blood feeding; (2b) suction with electrical signals of symmetrical shape, high suction rates (3.8 Hz on average) and feeding complexes lasting for 7.7 s; (2c) suction with electrical signals of irregular shape, high suction frequency and feeding complex lasting 11.5 s; and (2d) electrical signals with no profile and the longest feeding complexes (14.5 s). Blood feeding ended with the withdrawal of the mouthparts from the host's skin.
[Mh] Termos MeSH primário: Comportamento Alimentar/fisiologia
Interações Hospedeiro-Parasita/fisiologia
Ornithodoros/fisiologia
[Mh] Termos MeSH secundário: Animais
Eletromiografia
Fenômenos Eletrofisiológicos
Processamento de Imagem Assistida por Computador
Larva/fisiologia
Camundongos
Salivação/fisiologia
Processamento de Sinais Assistido por Computador
Sucção
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160915
[St] Status:MEDLINE


  6 / 207 MEDLINE  
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[PMID]:27523949
[Au] Autor:Manzano-Román R; Díaz-Martín V; Oleaga A; Obolo-Mvoulouga P; Pérez-Sánchez R
[Ad] Endereço:Parasitología Animal, Instituto de Recursos Naturales y Agrobiología de Salamanca (IRNASA, CSIC), Cordel de Merinas, 40-52, 37008 Salamanca, Spain. Electronic address: raul.manzano@irnasa.csic.es.
[Ti] Título:TSGP4 from Ornithodoros moubata: molecular cloning, phylogenetic analysis and vaccine efficacy of a new member of the lipocalin clade of cysteinyl leukotriene scavengers.
[So] Source:Vet Parasitol;227:130-7, 2016 Aug 30.
[Is] ISSN:1873-2550
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Recently obtained evidence indicated that an orthologue of the O. savignyi TSGP4 salivary lipocalin was present in the saliva of O. moubata. TSGP4 is known to act as a cysteinyl leukotrienes scavenger helping in the prevention of inflammation and oedema at the tick bite site. Since this function seems to be crucial for successful tick feeding, the novel O. moubata TSGP4 turned into a potential vaccine target. The purposes of the current work were: (i) to clone and characterize the O. moubata TSGP4 and, (ii) to produce it as recombinant to evaluate its protective efficacy as vaccine antigen. The results of these experiments indicated that the O. moubata TSGP4 shows high sequence and structural identity with the O. savignyi orthologue suggesting identical function in the physiology of the tick-host relationship. The mature native TSGP4 is not immunogenic when it is inoculated to host with tick saliva during feeding, but host vaccination with the recombinant protein TSGP4 in Freund's adjuvants induced strong humoral immune responses that recognized both the recombinant and native TSGP4 and protected the host with a 14.1% efficacy. So, the O. moubata TSGP4 can be considered a silent salivary antigen; however, in the light of the current results, its inclusion in the current repertory of protective antigens to be targeted by anti-tick vaccines could be controversial.
[Mh] Termos MeSH primário: Proteínas de Artrópodes/metabolismo
Ornithodoros/metabolismo
Infestações por Carrapato/veterinária
Vacinas/imunologia
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Animais
Anticorpos/sangue
Antígenos/imunologia
Proteínas de Artrópodes/genética
Proteínas de Artrópodes/imunologia
Clonagem Molecular
Regulação da Expressão Gênica
Modelos Moleculares
Ornithodoros/genética
Filogenia
Conformação Proteica
Coelhos
Infestações por Carrapato/prevenção & controle
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies); 0 (Antigens); 0 (Arthropod Proteins); 0 (Vaccines)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170501
[Lr] Data última revisão:
170501
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160816
[St] Status:MEDLINE


  7 / 207 MEDLINE  
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[PMID]:27430543
[Au] Autor:Diatta G; Mediannikov O; Boyer S; Sokhna C; Bassène H; Fenollar F; Chauvancy G; Ndiaye AA; Diene F; Parola P; Raoult D
[Ad] Endereço:Institut de Recherche pour le Développement, Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (UMR 198 IRD), Campus International de Recherche IRD/UCAD de Hann, Dakar, Senegal.
[Ti] Título:An Alternative Strategy of Preventive Control of Tick-Borne Relapsing Fever in Rural Areas of Sine-Saloum, Senegal.
[So] Source:Am J Trop Med Hyg;95(3):537-45, 2016 Sep 07.
[Is] ISSN:1476-1645
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In Senegal, tick-borne relapsing fever (TBRF) is a major cause of morbidity and a neglected public health problem. Borreliosis cases commonly detected in two villages led us to implement a borreliosis preventive control including cementing of floors in bedrooms and outbuildings attended by inhabitants to avoid human contacts with tick vectors. Epidemiological and medical monitoring of the TBRF incidence was carried out at Dielmo and Ndiop by testing the blood of febrile patients since 1990 and 1993, respectively. Intra-domiciliary habitat conditions were improved by cementing, coupled with accompanying measures, from March 2013 to September 2015. Application of this strategy was associated with a significant reduction of borreliosis incidence. This was more evident in Dielmo, dropping from 10.55 to 2.63 cases per 100 person-years (P < 0.001), than in Ndiop where it changed from 3.79 to 1.39 cases per 100 person-years (P < 0.001). Thirty-six cases of TBRF were estimated to be prevented at a cost of €526 per infection. The preventive control strategy was successful in Dielmo and Ndiop, being associated with decreased incidence by 89.8% and 81.5%, respectively, suggesting that TBRF may be widely decreased when the population is involved. Public health authorities or any development stakeholders should adopt this effective tool for promoting rural health through national prevention programs.
[Mh] Termos MeSH primário: Febre Recorrente/prevenção & controle
Doenças Transmitidas por Carrapatos/prevenção & controle
[Mh] Termos MeSH secundário: Animais
Borrelia
Análise Custo-Benefício
Habitação
Seres Humanos
Incidência
Ornithodoros/microbiologia
Reação em Cadeia da Polimerase
Vigilância da População
Febre Recorrente/epidemiologia
Controle de Roedores/métodos
Roedores/parasitologia
Senegal/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170907
[Lr] Data última revisão:
170907
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:160720
[St] Status:MEDLINE
[do] DOI:10.4269/ajtmh.15-0776


  8 / 207 MEDLINE  
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[PMID]:27430539
[Au] Autor:Jones JM; Hranac CR; Schumacher M; Horn K; Lee DM; Terriquez J; Engelthaler DM; Peoples M; Corrigan J; Replogle A; Souders N; Komatsu KK; Nieto NC
[Ad] Endereço:Arizona Department of Health Services, Phoenix, Arizona. Epidemic Intelligence Service, Atlanta, Georgia. jjones10@cdc.gov.
[Ti] Título:Tick-Borne Relapsing Fever Outbreak Among a High School Football Team at an Outdoor Education Camping Trip, Arizona, 2014.
[So] Source:Am J Trop Med Hyg;95(3):546-50, 2016 Sep 07.
[Is] ISSN:1476-1645
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:During August 2014, five high school students who had attended an outdoor education camp were hospitalized with a febrile illness, prompting further investigation. Ten total cases of tick-borne relapsing fever (TBRF) were identified-six cases confirmed by culture or visualization of spirochetes on blood smear and four probable cases with compatible symptoms (attack rate: 23%). All patients had slept in the campsite's only cabin. Before the camp, a professional pest control company had rodent proofed the cabin, but no acaricides had been applied. Cabin inspection after the camp found rodents and Ornithodoros ticks, the vector of TBRF. Blood samples from a chipmunk trapped near the cabin and from patients contained Borrelia hermsii with identical gene sequences (100% over 630 base pairs). Health departments in TBRF endemic areas should consider educating cabin owners and pest control companies to apply acaricides during or following rodent proofing, because ticks that lack rodents for a blood meal might feed on humans.
[Mh] Termos MeSH primário: Surtos de Doenças
Febre Recorrente/epidemiologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Animais
Arizona/epidemiologia
Borrelia/genética
Acampamento
Futebol Americano
Seres Humanos
Masculino
Ornithodoros/microbiologia
Filogenia
Febre Recorrente/etiologia
Febre Recorrente/microbiologia
Roedores/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170907
[Lr] Data última revisão:
170907
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:160720
[St] Status:MEDLINE
[do] DOI:10.4269/ajtmh.16-0054


  9 / 207 MEDLINE  
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[PMID]:27247068
[Au] Autor:Magadla NR; Vosloo W; Heath L; Gummow B
[Ti] Título:The African swine fever control zone in South Africa and its current relevance.
[So] Source:Onderstepoort J Vet Res;83(1):a1034, 2016 May 23.
[Is] ISSN:2219-0635
[Cp] País de publicação:South Africa
[La] Idioma:eng
[Ab] Resumo:African swine fever (ASF) has been reported in South Africa since the early 20th century. The disease has been controlled and confined to northern South Africa over the past 80 years by means of a well-defined boundary line, with strict control measures and movement restrictions north of this line. In 2012, the first outbreak of ASF outside the ASF control zone since 1996 occurred. The objective of this study was to evaluate the current relevance of the ASF control line as a demarcation line between endemic ASF (north) areas and ASF-free (south) area and to determine whether there was a need to realign its trajectory, given the recent outbreaks of ASF, global climate changes and urban development since the line's inception. A study of ASF determinants was conducted in an area 20 km north and 20 km south of the ASF control line, in Limpopo, Mpumalanga, North West and Gauteng provinces between May 2008 and September 2012. The study confirmed that warthogs, warthog burrows and the soft tick reservoir, Ornithodoros moubata, are present south of the ASF control line, but no virus or viral DNA was detected in these ticks. There appears to be an increasing trend in the diurnal maximum temperature and a decrease in humidity along the line, but the impact of these changes is uncertain. No discernible changes in minimum temperatures and average rainfall along the disease control line were observed between 1992 and 2014. Even though the reservoirs were found south of the ASF boundary line, the study concluded that there was no need to realign the trajectory of the ASF disease control line, with the exception of Limpopo Province. However, the provincial surveillance programmes for the reservoir, vector and ASF virus south of this line needs to be maintained and intensified as changing farming practices may favour the spread of ASF virus beyond the control line.
[Mh] Termos MeSH primário: Febre Suína Africana/epidemiologia
Surtos de Doenças/veterinária
[Mh] Termos MeSH secundário: Febre Suína Africana/prevenção & controle
Febre Suína Africana/virologia
Vírus da Febre Suína Africana/isolamento & purificação
Animais
Vetores Aracnídeos/virologia
Reservatórios de Doenças/virologia
Monitoramento Epidemiológico/veterinária
Ornithodoros/virologia
África do Sul/epidemiologia
Suínos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1612
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160602
[St] Status:MEDLINE
[do] DOI:10.4102/ojvr.v83i1.1034


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[PMID]:27188066
[Au] Autor:Gaither M; Schumacher M; Nieto N; Corrigan J; Murray H; Maurer M
[Ti] Título:Where Are the Ticks? Solving the Mystery of a Tickborne Relapsing Fever Outbreak at a Youth Camp.
[So] Source:J Environ Health;78(8):8-11, 2016 Apr.
[Is] ISSN:0022-0892
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:During the summer of 2014 an outbreak of tickborne relapsing fever (TBRF) occurred in a group of high school students and staff at a youth camp, which was reported to Coconino County Public Health Services District. Six confirmed and five probable cases of TBRF occurred. During the environmental investigation two rodents tested positive for TBRF, but the vector, soft ticks, could not be found in their "normal" habitat. Ticks were finally located in areas not typical for soft ticks.
[Mh] Termos MeSH primário: Ecossistema
Saúde Ambiental
Ornithodoros/fisiologia
Febre Recorrente/epidemiologia
[Mh] Termos MeSH secundário: Adolescente
Distribuição Animal
Animais
Arizona/epidemiologia
Borrelia/fisiologia
Surtos de Doenças
Seres Humanos
Febre Recorrente/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1606
[Cu] Atualização por classe:160518
[Lr] Data última revisão:
160518
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160519
[St] Status:MEDLINE



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