干旱区生态环境知识资源中心(Arid): Analysis of management factors influencing Anaplasma marginale transmission

Arid

DOI	10.1016/j.vetpar.2024.110283
	Analysis of management factors influencing Anaplasma marginale transmission
	Morel, Nicolas; Mastropaolo, Mariano; de Echaide, Susana Torioni; Signorini, Marcelo L.; Mangold, Atilio J.; Primo, Maria E.
通讯作者	Morel, N
来源期刊	VETERINARY PARASITOLOGY
ISSN	0304-4017
EISSN	1873-2550
出版年	2024
卷号	331
英文摘要	The aim of this study was to identify factors that play a key role in the epidemiology of bovine anaplasmosis by adapting a model primarily developed for cattle babesiosis. A cross-sectional observational study was conducted to study the proportion of calf herds in endemic stability/instability for A. marginale in a semi-arid area of Argentina. The A. marginale inoculation rate (h) was calculated from age-specific seroprevalence using doubleantigen sandwich ELISA in 58 herds of 4.5-8.5-month-old calves. Herds were considered to be in endemic instability (EI) at h < 0.005 and, therefore, at risk of anaplasmosis outbreaks. A generalized linear model was performed to explore husbandry practices associated with differences in A. marginale transmission. Additionally, spatial clustering of herds with the same immunological status was analyzed using spatial scan statistics (SatScan, Bernoulli model). Spearman's correlation was used to explore a possible association between A. marginale h and Babesia bovis and B. bigemina h (data obtained in previous works). Almost half (43 %) of the herds were in the EI zone for A. marginale. Calves raised under forage combinations had a greater risk of being in EI (OR = 5.41, CI95 %OR = 1.43-20.41) than those reared exclusively on permanent pastures, where cattle density is higher (P = 0.01). Moreover, calves from herds treated only with pyrethroids to control ticks had more chances of being in EI (OR = 4.16, CI95 %OR = 1.12-15.38) than calves from herds receiving different acaricide combinations (P = 0.03). Calves from herds subjected to more than two treatments against Haematobia irritans had higher odds for EI (OR = 5.69, CI95 %OR = 1.24-26.11) than those from herds using fewer than two treatments (P = 0.02). The spatial analysis revealed no spatial clustering of the immune status of the herds (P = 0.67 and P = 0.74 for low and high incidence rates, respectively). A significant variation between farms was observed in A. marginale h (CV = 90.38 %). The correlation analysis revealed a strong epidemiological link of A. marginale h with B. bovis h (Rho=0.794, P<0.001) and B. bigemina h (Rho=0.839, P<0.001). Given that R. microplus is the only vector of B. bovis and B. bigemina in the region, the results of this work strongly suggest an active and significant role of R. microplus in the transmission of A. marginale.
英文关键词	Anaplasmosis Rhipicephalus microplus Cattle density
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001291089200001
WOS关键词	RHIPICEPHALUS BOOPHILUS MICROPLUS ; MECHANICAL TRANSMISSION ; BIOLOGICAL TRANSMISSION ; ENDEMIC STABILITY ; STABLE FLIES ; CATTLE ; TICKS ; ACARI ; RICKETTSIALES ; BABESIOSIS
WOS类目	Parasitology ; Veterinary Sciences
WOS研究方向	Parasitology ; Veterinary Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405835
推荐引用方式 GB/T 7714	Morel, Nicolas,Mastropaolo, Mariano,de Echaide, Susana Torioni,et al. Analysis of management factors influencing Anaplasma marginale transmission[J],2024,331.
APA	Morel, Nicolas,Mastropaolo, Mariano,de Echaide, Susana Torioni,Signorini, Marcelo L.,Mangold, Atilio J.,&Primo, Maria E..(2024).Analysis of management factors influencing Anaplasma marginale transmission.VETERINARY PARASITOLOGY,331.
MLA	Morel, Nicolas,et al."Analysis of management factors influencing Anaplasma marginale transmission".VETERINARY PARASITOLOGY 331(2024).