Identification and evaluation of midgut protein RL12 of Dermacentor silvarum interacting with Anaplasma ovis VirD4

2021 ◽  
Vol 12 (3) ◽  
pp. 101677
Author(s):  
Naveed Iqbal ◽  
Muhammad Uzair Mukhtar ◽  
Jifei Yang ◽  
Qingli Niu ◽  
Zhi Li ◽  
...  
Keyword(s):  
2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Łukasz Adaszek ◽  
Anna Wilczyńska ◽  
Jerzy Ziętek ◽  
Marcin Kalinowski ◽  
Oliwier Teodorowski ◽  
...  

Abstract Background Anaplasma are obligate intracellular bacteria and aetiological agents of tick-borne diseases of both veterinary and medical interest. The genus Anaplasma comprises six species: Anaplasma marginale, Anaplasma centrale, Anaplasma ovis, Anaplasma phagocytophilum, Anaplasma bovis and Anaplasma platys. They can infect humans, carnivores, ruminants, rodents, insectivores, birds and reptiles. The aim of this study was to present the first clinical case of granulocytic anaplasmosis in a captive ring-tailed lemur in Poland. Case presentation A 4-year-old female lemur presented anorexia, epistaxis and tick infestation. The microscopic examination of a blood smear revealed morulae in neutrophils. Polymerase chain reaction test and sequencing of obtained PCR product confirmed infection by the GU183908 Anaplasma phagocytophilum strain. Therapeutic protocol included doxycycline (2.5 mg/kg p.o., b.i.d.) for 3 weeks and the lemur recovered within 24 h. Conclusions This is the first report on granulocytic anaplasmosis in a ring-tailed lemur in Europe, indicating that A. phagocytophilum infection must also be considered in differential diagnosis in this animal species, especially in individuals with thrombocytopenia associated with Ixodes ricinus parasitism.


1993 ◽  
Vol 29 (4) ◽  
pp. 540-546 ◽  
Author(s):  
Will Goff ◽  
David Stiller ◽  
David Jessup ◽  
Peter Msolla ◽  
Walter Boyce ◽  
...  

1993 ◽  
Vol 37 (1-2) ◽  
pp. 19-30
Author(s):  
Yoshio Nakamura ◽  
Shin-ichiro Kawazu ◽  
Tetsuro Minami

2020 ◽  
Vol 23 (2) ◽  
pp. 228-235
Author(s):  
Adnan Ahmed ◽  
Jassim M Abdo

In last ten years, there has been a developing enthusiasm for microscopic organisms from the genus Anaplasma, particularly the species A. ovis. It is associated with the pathogenic action of these microscopic organisms in livestock. Anaplasma ovis is a tick-borne obligate intracellular rickettsial bacterium that causes anaplasmosis in domestic and wild small ruminants. The samples of the present study were collected from small ruminants from inside seven distinct regions (Akre, Simele, Zummar, Feshchapoor, Deraboon, Bajed Kandal,Karoda)of Duhok province, 389 (goats 75 and sheep 314) during the period of April and May 2018, blood sample were taken and thin smear was formed, after Giemsa’s staining the slide is observed under microscope. In this study used Giemsa stain for microscopic examination out of 389 animals 250 were found positive for Anaplasma ovis infection with a prevalence rate of 64.26 % and 139 of them were negative with a prevalence rate of 35.73 %. According to the species of animals, the highest prevalence of A. ovis infection in animals by using microscopic examination was 67.83 %, 213 positive sample from total 314 blood samples from sheep and lowest prevalence was 49.33 %, 37 positive sample from total 75 blood samples from goats. PCR analysis of 100 blood samples obtained from total 250 positive blood samples after DNA extraction and measure of concentration and purity we used 2 primers that target major surface protein 4 (MSP4) in A. ovis genomic DNA. The results of PCR test with major surface protein 4 primer was 83 samples positive from total 100 samples, According to the species of animals, the highest prevalence of A. ovis was 83.7 %, 72 positive sample from total 86 blood samples from sheep and lowest prevalence was 78.5 %, 11 positive sample from total 14 blood samples from goats.


2021 ◽  
Vol 6 (1) ◽  
pp. 60-68
Author(s):  
O. V. Suntsova ◽  
V. A. Rar ◽  
O. V. Lisak ◽  
I. V. Meltsov ◽  
E. K. Doroschenko ◽  
...  

Anaplasmosis of ruminants is a group of natural focal infections caused by bacteria from the genus Anaplasma of the Anaplasmataceae family. The main etiological agent of anaplasmosis in sheep, goats, and wild ruminants is Anaplasma ovis, which parasitizes in the erythrocytes of these animals. The purpose of this study was the finding and identification of Anaplasma spp. in the blood of small ruminants using genetic methods and obtaining data on the distribution of anaplasmosis in the Irkutsk region. 20 goat blood samples, 611 sheep blood samples and 209 Dermacentor nuttalli ticks from 12 districts of the Irkutsk region were examined for the presence of Anaplasma spp. Only one type of anaplasma, A. ovis, was found among the genotyped samples. A. ovis was found in the blood of sheep and goats in all of the studied districts of the Irkutsk region. The proportion of sheep blood samples containing anaplasma DNA varied from 30 % to 85 %, in goats – from 10 % to 100 % in different districts, and averaged 57.8 % in sheep and 55,0 % in goats. Frequency of infection of D. nuttalli ticks with A. ovis was 5.7 %. The nucleotide sequences of the samples detected in the blood of small ruminants on the territory of the Irkutsk region differed from each other by a single nucleotide substitution and were identical to the sequences of the type strain Haibei, as well as the sequences of A. ovis previously found in the blood of sheep from Mongolia, deer from China, and Dermacentor niveus and Dermacentor nuttalli ticks from China. These sequences were also identical to the sequences previously found in the blood of sheep from Altai and in Dermacentor nuttalli ticks from Tuva, which indicates the wide distribution of these A. ovis genovariants in Siberia and the probable role of D. nuttalli as a carrier of the agent of anaplasmosis of small ruminants in the Irkutsk region.


2019 ◽  
Author(s):  
Nayyereh Choubdar ◽  
Fateh Karimian ◽  
Mona Koosha ◽  
Jalil Nejati ◽  
Mohammad Ali Oshaghi

Abstract Background Anaplasmosis / Ehrlichiosis are tick-borne diseases affecting human and livestock in tropical and subtropical regions of the world. Due to infection both animals and humans and monitoring of ticks and the pathogens they carry, an extensive survey was conducted in border line of Iran-Pakistan of Sistan and Baluchistan, southeast corner of Iran in 2016-2017, where animal husbandry is the main activity of people and every week thousands of cattle cross the borders into the countries. The aim of the survey was to determine the prevalence and geographical distribution of Anaplasmosis / Ehrlichiosis agents in Hyalomma spp hard ticks. Ticks were collected, identified and processed for Anaplasma / Ehrlichia spp DNA detection. Results Six Hyalomma species were found in the region, where Hy. anatolicum was the most prevalent species collected on goats, cattle, and camel. Anaplasma / Ehrlichia genomes were found in 68.3% of the specimens. Anaplasma ovis, A.marginale, and E.ewingii DNAs prevalence were 81.82, 9.09, and 9.09% in the infected ticks respectively. DNA sequence and phylogenetic analysis of the 16SrRNA gene confirmed the detection of these three anaplasmosis agents while they had 99-100% identity with the strains previously reported in genbank from different parts of the world. Conclusion Because A.ovis and A.marginale are important livestock pathogens, and E.ewingii is an important human pathogen, both farmers and people in border line of the countries which engaged in livestock need to be made aware of the risks of tick infestation and the tick-borne disease they transmit.


2018 ◽  
Vol 6 (5) ◽  
Author(s):  
Sandra Diaz-Sanchez ◽  
Angélica Hernández-Jarguín ◽  
Isabel G. Fernández de Mera ◽  
Pilar Alberdi ◽  
Erich Zweygarth ◽  
...  

ABSTRACTHere, we report the draft genome sequences of isolates ofAnaplasma phagocytophilum,Anaplasma marginale, andAnaplasma ovis. The genomes ofA. phagocytophilum(human),A. marginale(cattle), andA. ovis(goat) isolates from the United States were sequenced and characterized. This is the first report of anA. ovisgenome sequence.


1992 ◽  
Vol 28 (1) ◽  
pp. 125-129 ◽  
Author(s):  
Todd Tibbitts ◽  
Will Goff ◽  
William Foreyt ◽  
David Stiller

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