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Current Challenges of the Management and Epidemiology of Bovine Anaplasmosis

Authors: Kocan, Katherine M.; Fuente, José de la; Boileau, Melanie J.;

Current Challenges of the Management and Epidemiology of Bovine Anaplasmosis

Abstract

[FR]: L’anaplasmose bovine, qui est causée par la rickettsie intracellulaire Anaplasma marginale, est endémique dans plusieurs régions des États-Unis et continue toujours d’affecter les bovins. Bien qu’il y ait eu des progrès de recherche considérables depuis les dernières décennies, les stratégies de contrôle de l’anaplasmose n’ont que bien peu évoluées depuis la mise en marché du premier vaccin aux États-Unis dans les années soixante. Néanmoins, ces travaux continuent toujours à contribuer à notre compréhension de la complexité de l’anaplasmose bovine. Avec les percées récentes en biologie moléculaire, les interactions entre hôtes et pathogènes sont présentement mieux définies et la classification d’Anaplasma a été réorganisée afin d’inclure plusieurs organismes autre que ceux rattachés spécifiquement aux ruminants. Dans cette analyse documentaire, le statut actuel de l’anaplasmose est discuté afin d’éclairer les médecins vétérinaires en pratique bovine sur les défis futurs concernant la gestion, le diagnostic et le contrôle de l’anaplasmose bovine. Cette analyse documentaire donne une information à jour sur la classification du genre Anaplasma et d’autres organismes apparentés, le cycle de développement de A. marginale chez les bovins et les tiques, le rôle des tiques mâles dans la transmission de l’anaplasmose et l’influence potentielle des changements climatiques dans l’épidémiologie de cette sérieuse maladie. Une seconde analyse documentaire suivra se penchant sur les problèmes de l’heure associés au diagnostic et au contrôle de l’anaplasmose bovine. Le but général de ces analyses documentaires est de permettre de mieux comprendre l’état actuel des travaux de recherche et des connaissances sur l’anaplasmose bovine et de fournir aux praticiens des réponses à leurs fréquentes questions.

[EN]: Bovine anaplasmosis, caused by the intracellular rickettsia Anaplasma marginale, is endemic in several areas of the United States and has continued to impact cattle production. While considerable research has been done over the past several decades, control strategies for anaplasmosis have advanced minimally since the first anaplasmosis vaccine was marketed in the US in the 1960s. However, these research findings have continued to contribute to our overall understanding of the complexity of bovine anaplasmosis. With the advent of molecular biology, host/pathogen interactions are currently better defined and the classification of Anaplasma has been reorganized to include several organisms in addition to those that are host-specific for ruminants. In this review, the current status of anaplasmosis is discussed with the aim of providing insight to bovine practitioners on the future challenges for the management, diagnosis, and control of bovine anaplasmosis. This review focuses on updated information on the classification of the genus Anaplasma and related organisms, the developmental cycle of A. marginale in cattle and ticks, the role of male ticks in transmission of anaplasmosis, the diversity of A. marginale strains, the wildlife reservoirs of A. marginale, and the potential influence of climate change on the epidemiology of this serious disease. A second review will follow which focuses on current issues related to diagnosis and control of bovine anaplasmosis. Overall, the goal of these reviews is to provide an understanding of the current status of research and knowledge of bovine anaplasmosis and provide veterinarians answers to frequently asked questions.

10 páginas, 1 figura, 1 tabla.-- et al.

Peer reviewed

Keywords

Anaplasma marginale, Bovine anaplasmosis, Cattle, Rickettsia, Anaplasma phagocytophilum

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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