Distribution and Molecular Epidemiology of Anaplasma ovis in Melophagus ovinus and Small Ruminants in Border Regions of South Xinjiang, China

Background: Anaplasma ovis are obligate intracellular bacteria that can endanger human and animal health, and they can be transmitted by arthropod vectors, such as Melophagus ovinus and ticks. Materials and Methods: In this study, 433 specimens, including 370 M. ovinus and 63 sheep blood samples, we...

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Published inVector borne and zoonotic diseases (Larchmont, N.Y.) Vol. 23; no. 1; pp. 1 - 8
Main Authors Li, Siang, Zhang, Liu, Li, Zheng, Song, Haonan, Que, Zewei, Zhao, Siyu, Li, Yingying, Guo, Yuling, Wu, Junyuan
Format Journal Article
LanguageEnglish
Published United States Mary Ann Liebert, Inc., publishers 01.01.2023
Subjects
Anaplasma - genetics
Anaplasma ovis - genetics
Anaplasmosis - epidemiology
Anaplasmosis - microbiology
Animals
China - epidemiology
Diptera - microbiology
Humans
Molecular Epidemiology
Original Articles
Phylogeny
Ruminants
Sheep
Sheep Diseases - epidemiology
Sheep Diseases - microbiology
Ticks - microbiology
China
gene
genetic characterization
msp4 gene
Melophagus ovinus
Anaplasma ovis
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Summary:Background: Anaplasma ovis are obligate intracellular bacteria that can endanger human and animal health, and they can be transmitted by arthropod vectors, such as Melophagus ovinus and ticks. Materials and Methods: In this study, 433 specimens, including 370 M. ovinus and 63 sheep blood samples, were collected from nine districts of South Xinjiang to investigate the distribution and molecular epidemiology of A. ovis in M. ovinus and small ruminant. Results: DNA of A. ovis was detected in 109 (25.2%, 109/433) of the 433 samples using PCR and sequencing. The analysis of A. ovis msp4 sequences revealed four different genotypes, including genotype III (47.7%; 52/109), GB3 (34.0%; 37/109), AoGOv3 (15.6%; 17/109), and XJ9 (2.8%; 3/109). Conclusions: To the best of our knowledge, A. ovis genotypes GB3, AoGOv3, and XJ9 detected in this study are the first to be reported in M. ovinus , and our data indicate that XJ9 is a novel A. ovis genotype presented herein for the first time. These findings provide important references for the new understanding and prevention of A. ovis in border counties in China.
ISSN:1530-3667
1557-7759
DOI:10.1089/vbz.2022.0059