scholarly journals Arthropod Vector

2020 ◽  
Author(s):  
Keyword(s):  
Arthropod Vector

A Survey on Tick Infestation in Domestic Birds Sold at Gwagwalada Market, Abuja, FCT, Nigeria.

2016 ◽  
Vol 5 (04) ◽  
pp. 4974
Author(s):  
Ayoh Stephen O. ◽  
Olanrewaju Comfort A*
Keyword(s):  
Chemical Control ◽  
Tick Species ◽  
Tick Infestation ◽  
Guinea Fowl ◽  
Vector Group ◽  
Arthropod Vector ◽  
Argas Persicus ◽  
Domestic Birds ◽  
Micro Organisms

Ticks transmit a greater variety of pathogenic micro-organisms than any other arthropod vector group, and are among the most important vectors of diseases affecting animals. A survey on the prevalence of tick species infesting domestic birds sold in Gwagwalada main market, Abuja between April and July, 2015. A total of 450 birds were examined by feather separation with fingers and a pair of forceps to expose the skin of the birds for presence of the ticks. An overall prevalence of 25.6% was observed. Out of the 150 domestic fowls examined 62(53.9%) were infested, 44(29.3%) of the 150 Guinea fowl and 9(6.0%) of the 150 Pigeons were infested. Of all the ticks identified, 93(51.4%) were from the Domestic Fowls and 77(42.5%) from the Guinea fowl and 11(6.0%) from Pigeon. Thirty (32.3%) of the ticks from the Domestic fowls were Argas persicus, 25(26.9%) Argas walkerae, 20 (21.5%) Ornithodorus moubata and 18(19.4%) Ornithodorus savignyi. Similarly, 34(44.2%) of the ticks from Guinea fowl were A. walkerae, 20(28.2%) O. moubataand 23(32.4%) O. savignyi. Five (45.5%) of the ticks from Pigeon were A. persicus, 4 (36.4%) were A. walkerae, 2 (18.2%) were O. moubata and no O. savignyi. Observation on the location of tick from the hosts body showed highest prevalence was found under the wings (55.2%) and lowest on the head & neck (5.00%). The result of this research revealed that Gwagwalada market poultry section is endemic of tick infestation. Chemical control with acaricides and improved management and sanitation of the poultry cages in the market should be enforced.

scholarly journals Novel Identification of Dermacentor variabilis Arp2/3 Complex and Its Role in Rickettsial Infection of the Arthropod Vector

PLoS ONE ◽  
2014 ◽  
Vol 9 (4) ◽  
pp. e93768 ◽  
Author(s):  
Natthida Petchampai ◽  
Piyanate Sunyakumthorn ◽  
Mark L. Guillotte ◽  
Victoria I. Verhoeve ◽  
Kaikhushroo H. Banajee ◽  
...  
Keyword(s):  
Dermacentor Variabilis ◽  
Rickettsial Infection ◽  
Arthropod Vector

Evaluating a mixed abiotic–biotic model for the distribution and host contact rates of an arthropod vector of pathogens: An example with Ixodes ricinus (Ixodidae)

2019 ◽  
Vol 13 ◽  
pp. 100067 ◽  
Author(s):  
Agustín Estrada-Peña ◽  
Amie Adkin ◽  
Silvia Bertolini ◽  
Charlotte Cook ◽  
Maria Ines Crescio ◽  
...  
Keyword(s):  
Ixodes Ricinus ◽  
Arthropod Vector ◽  
Contact Rates

scholarly journals Babesiosis Survey of Voles of Grand Teton National Park

2011 ◽  
Vol 34 ◽  
pp. 23-26
Author(s):  
Kevin Barton
Keyword(s):  
Dna Sequences ◽  
National Park ◽  
Sequence Data ◽  
The United States ◽  
Cross Reactivity ◽  
Babesia Microti ◽  
Meadow Vole ◽  
Grand Teton National Park ◽  
Arthropod Vector ◽  
Microtus Montanus

First described in 1885 by Viktor Babes, babesiosis was the first known arthropod vector-borne disease and the general term for the malaria-like infection due to protozoan parasites of the family Babesiidae of which there are on the order of 100 known species of worldwide distribution (CDC, Hunfeld et al. 2008). The overarching objective of this study is to examine the phylogenetic relatedness of the endemic strain(s) of Babesia microti isolated from voles (Microtus montanus, M. pennsylvanicus) in the Grand Teton National Park to previously described babesia species/strains. In the United States the rodent parasite B. microti is the etiological agent of babesiosis in areas of endemicity with the primary reservoir often described as the white-footed mouse (Peromyscus leucopus) and borne by the arthropod vector the black-legged tick (Ixodes scapularis) (Persing et al. 1992, Mitchell et al. 1996) The primary reservoir within the Grand Teton National Park region has been shown to be the meadow vole (Microtus pennsylvanicus) and the montane vole (Microtus montanus) (Watkins et al. 1991, Peck 1998) It is these reservoir host animals which the present research proposes to investigate. To this end, the research aspects specific to our IACUC proposal are to obtain blood samples for subsequent genotyping of B. microti samples for comparison to those previously isolated from wild populations of voles from the Grand Teton National Park region (Peck 1998). This research generally involves comparing DNA sequences from isolates to those of previously described strains focusing on the B-tubulin genes. This was selected to give a more particular phylogeny than was possible by previously employed methods such as immunoassay, which lacks sensitivity and suffers cross-reactivity, and 16s-ribosomal DNA of the past decade, which lacks specificity relative to the less highly-conserved B-tubulin. These samples will be genotyped by sequencing and comparison against the relatively more recent Genbank B-tubulin sequence data submissions for B. microti variants.

Francisella tularensis infection

2020 ◽  
pp. 1091-1094
Author(s):  
Petra C.F. Oyston
Keyword(s):  
North America ◽  
Supportive Care ◽  
Francisella Tularensis ◽  
Clinical Presentation ◽  
Small Rodents ◽  
Gram Negative ◽  
Arthropod Vector ◽  
Positive Identification ◽  
Rich Media ◽  
Life Threatening

Fransicella tularensis is a small Gram-negative coccobacillus that circulates in small rodents, rabbits, and hares, most frequently in Scandinavia, northern North America, Japan, and Russia. Clinical presentation depends on the route of infection. Most commonly this follows the bite of an infected arthropod vector, resulting in ulceroglandular tularaemia. The most acute and life-threatening disease, respiratory or pneumonic tularaemia, arises following inhalation of infectious aerosols or dusts. The organism is highly fastidious, requiring rich media for isolation and specialized reagents for positive identification; most cases are diagnosed serologically. Treatment is with supportive care and antibiotics (usually ciprofloxacin, doxycycline, or gentamicin). There is no vaccine.

scholarly journals Emerging roles of non-coding RNAs in vector-borne infections

2020 ◽  
Vol 134 (5) ◽  
pp. jcs246744
Author(s):  
Chaima Bensaoud ◽  
Larissa Almeida Martins ◽  
Hajer Aounallah ◽  
Michael Hackenberg ◽  
Michail Kotsyfakis
Keyword(s):  
Protein Activity ◽  
Arthropod Vector ◽  
Vector Borne Diseases ◽  
Defense Systems ◽  
Sequencing Studies ◽  
Vector Borne ◽  
Vertebrate Hosts ◽  
Non Coding Rnas ◽  
Eukaryotic Genomes

ABSTRACTNon-coding RNAs (ncRNAs) are nucleotide sequences that are known to assume regulatory roles previously thought to be reserved for proteins. Their functions include the regulation of protein activity and localization and the organization of subcellular structures. Sequencing studies have now identified thousands of ncRNAs encoded within the prokaryotic and eukaryotic genomes, leading to advances in several fields including parasitology. ncRNAs play major roles in several aspects of vector–host–pathogen interactions. Arthropod vector ncRNAs are secreted through extracellular vesicles into vertebrate hosts to counteract host defense systems and ensure arthropod survival. Conversely, hosts can use specific ncRNAs as one of several strategies to overcome arthropod vector invasion. In addition, pathogens transmitted through vector saliva into vertebrate hosts also possess ncRNAs thought to contribute to their pathogenicity. Recent studies have addressed ncRNAs in vectors or vertebrate hosts, with relatively few studies investigating the role of ncRNAs derived from pathogens and their involvement in establishing infections, especially in the context of vector-borne diseases. This Review summarizes recent data focusing on pathogen-derived ncRNAs and their role in modulating the cellular responses that favor pathogen survival in the vertebrate host and the arthropod vector, as well as host ncRNAs that interact with vector-borne pathogens.

Sign in / Sign up

Export Citation Format

Share Document