Hurley M J, Riggs C M, Cogger N, Rosanowski S M
Department of Veterinary Clinical Services, Hong Kong Jockey Club, Sha Tin Racecourse, Sha Tin, New Territories, Hong Kong.
Department of Veterinary Clinical Services, Hong Kong Jockey Club, Sha Tin Racecourse, Sha Tin, New Territories, Hong Kong.
Vet J. 2016 Aug;214:34-9. doi: 10.1016/j.tvjl.2016.01.006. Epub 2016 Mar 7.
A 2 year prospective study was performed between February 2011 and January 2013 to determine the incidence and risk factors for shipping fever (SF) in horses transported by air to Hong Kong (HK). Using a questionnaire, data were collected from professional flying grooms regarding the journey to HK and horses in the shipment. Horses were monitored in quarantine for 2 weeks after arrival in HK, and clinical signs of SF recorded. Poisson and logistic regression models were used to identify risk factors for SF at the horse and shipment levels. The study analysed data from 869 horses on 81 flights arriving from Australia (n = 24), New Zealand (NZ; n = 18), the United Kingdom (UK; n = 33) and the United States of America (USA; n = 6). The incidence risk of SF was 10.8 per 100 horses and the proportion of shipments with at least one horse that developed SF was 49/81 (60%). The study identified that the rate per shipment of SF in shipments of horses originating from NZ, the USA and the UK was 2.40 (95% confidence interval [CI] 1.22-4.71), 2.43 (95% CI 0.66-8.89) and 3.08 (95% CI 1.60-5.93) times the rate of SF compared to Australia. Shipments arriving in HK during March and May were 5.61 (95% CI 1.55-20.31) and 4.51 (95% CI 1.43-14.26) times more likely to contain horses that developed SF compared to shipments arriving in January. The identification of these risk factors and the recognition of at-risk shipments will help focus attention on preventative strategies.
2011年2月至2013年1月期间进行了一项为期2年的前瞻性研究，以确定空运至香港的马匹发生运输热（SF）的发病率及风险因素。通过问卷调查，收集了专业飞行马夫关于前往香港的行程及运输马匹的相关数据。马匹抵达香港后在检疫期接受2周监测，并记录运输热的临床症状。采用泊松回归模型和逻辑回归模型确定马匹个体及运输批次层面运输热的风险因素。该研究分析了来自81趟航班的869匹马的数据，这些航班分别来自澳大利亚（n = 24）、新西兰（NZ；n = 18）、英国（UK；n = 33）和美国（USA；n = 6）。运输热的发病风险为每100匹马中有10.8例，至少有一匹马发生运输热 的运输批次比例为49/81（60%）。该研究确定，与澳大利亚相比，来自新西兰、美国和英国的马匹运输批次中运输热的发生率分别是其2.40倍（95%置信区间[CI] 1.22 - 4.71）、2.43倍（95% CI 0.66 - 8.89）和3.08倍（95% CI 1.60 - 5.93）。与1月份抵达香港的运输批次相比，3月和5月抵达香港的运输批次中出现运输热马匹的可能性分别高5.61倍（95% CI 1.55 - 20.31）和4.51倍（95% CI 1.43 - 14.26）。识别这些风险因素以及确认有风险的运输批次将有助于集中关注预防策略。
