Kelly Robert F, Hamman Saidou M, Morgan Kenton L, Nkongho Egbe F, Ngwa Victor Ngu, Tanya Vincent, Andu Walters N, Sander Melissa, Ndip Lucy, Handel Ian G, Mazeri Stella, Muwonge Adrian, Bronsvoort Barend M de C
The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, United Kingdom.
Farm Animal Clinical Sciences, School of Veterinary Medicine, University of Glasgow, Glasgow, United Kingdom.
PLoS One. 2016 Jan 8;11(1):e0146538. doi: 10.1371/journal.pone.0146538. eCollection 2016.
Control of bovine tuberculosis (bTB) and zoonotic tuberculosis (zTB) has relied upon surveillance and slaughter of infected cattle, milk pasteurisation and public health education. In Cameroon, like many other sub-Saharan African countries, there is limited understanding of current cattle husbandry or milk processing practices or livestock keepers awareness of bTB. This paper describes husbandry and milk processing practices within different Cameroonian cattle keeping communities and bTB awareness in comparison to other infectious diseases.
A population based cross-sectional sample of herdsmen and a questionnaire were used to gather data from pastoralists and dairy farmers in the North West Region and Vina Division of Cameroon.
Pastoralists were predominately male Fulanis who had kept cattle for over a decade. Dairy farmers were non-Fulani and nearly half were female. Pastoralists went on transhumance with their cattle and came into contact with other herds and potential wildlife reservoirs of bTB. Dairy farmers housed their cattle and had little contact with other herds or wildlife. Pastoralists were aware of bTB and other infectious diseases such as foot-and-mouth disease and fasciolosis. These pastoralists were also able to identify clinical signs of these diseases. A similar proportion of dairy farmers were aware of bTB but fewer were aware of foot-and-mouth and fasciolosis. In general, dairy farmers were unable to identify any clinical signs for any of these diseases. Importantly most pastoralists and dairy farmers were unaware that bTB could be transmitted to people by consuming milk.
Current cattle husbandry practices make the control of bTB in cattle challenging especially in mobile pastoralist herds. Routine test and slaughter control in dairy herds would be tractable but would have profound impact on dairy farmer livelihoods. Prevention of transmission in milk offers the best approach for human risk mitigation in Cameroon but requires strategies that improved risk awareness amongst producers and consumers.
牛结核病(bTB)和人畜共患结核病(zTB)的防控依赖于对感染牛的监测与扑杀、牛奶巴氏杀菌以及公共卫生教育。与许多其他撒哈拉以南非洲国家一样,喀麦隆对当前的养牛方式、牛奶加工做法或牲畜饲养者对牛结核病的认知了解有限。本文描述了喀麦隆不同养牛社区的饲养和牛奶加工做法以及与其他传染病相比的牛结核病认知情况。
采用基于人群的牧民横断面样本和问卷,从喀麦隆西北地区和维纳分区的牧民和奶农处收集数据。
牧民主要是富拉尼族男性,他们养牛超过十年。奶农不是富拉尼族,近一半是女性。牧民带着他们的牛进行季节性迁移,与其他牛群以及牛结核病的潜在野生动物宿主接触。奶农圈养他们的牛,很少与其他牛群或野生动物接触。牧民了解牛结核病以及其他传染病,如口蹄疫和肝片吸虫病。这些牧民也能够识别这些疾病的临床症状。类似比例的奶农了解牛结核病,但了解口蹄疫和肝片吸虫病的较少。总体而言,奶农无法识别这些疾病中的任何一种的临床症状。重要的是,大多数牧民和奶农不知道饮用牛奶会传播牛结核病给人。
当前的养牛做法使得牛结核病的防控具有挑战性,特别是在流动的牧民牛群中。奶牛群的常规检测和扑杀控制是可行的,但会对奶农生计产生深远影响。预防牛奶传播为喀麦隆降低人类风险提供了最佳方法,但需要采取提高生产者和消费者风险意识的策略。