Kardjadj Moustafa
Ecole Supérieure en Science de l'Aliments et des Industries Agroalimentaire, Avenue Hamidouch, El-Harrach, Algiers, Algeria.
Trop Anim Health Prod. 2017 Dec;49(8):1783-1785. doi: 10.1007/s11250-017-1370-0. Epub 2017 Aug 1.
In 2006, the Algerian authorities started the Rev-1 vaccination of sheep and goats; consequently, there was a significant improvement of small ruminant brucellosis sanitary status. In this paper, we attempt to study the effect of Rev-1 small ruminants' vaccination on cattle brucellosis prevalence in Algeria. Our results showed an overall cattle herd seroprevalence of 12% (9 positive herds of 75). The risk factor analysis using a logistic regression model indicated that the presence of small ruminants along with cattle in the herd (mixed herds) decreased the odds for brucellosis seropositivity by 1.69 [95% CI 0.54-2.84; P = 0.042] compared to the cattle herds only. Likewise, the present study showed that the presence of Rev-1 vaccinated small ruminants in the herd decreased also the odds for brucellosis seropositivity by 4.10 [95% CI 3.20-5.00; P = 0.003] compared to other herds. This result lead to the assumption that the small ruminants Rev-1 vaccination diminish Brucella microbisme pressure in the mixed herds and help decrease the cattle brucellosis prevalence in these herds.
2006年，阿尔及利亚当局开始对绵羊和山羊进行Rev-1疫苗接种；因此，小反刍兽布鲁氏菌病的卫生状况有了显著改善。在本文中，我们试图研究Rev-1疫苗接种对阿尔及利亚牛群布鲁氏菌病流行率的影响。我们的结果显示，牛群的总体血清阳性率为12%（75个牛群中有9个呈阳性）。使用逻辑回归模型进行的风险因素分析表明，与仅养牛的牛群相比，牛群中同时存在小反刍兽（混养牛群）使布鲁氏菌病血清阳性的几率降低了1.69[95%置信区间0.54 - 2.84；P = 0.042]。同样，本研究表明，与其他牛群相比，牛群中存在接种了Rev-1疫苗的小反刍兽也使布鲁氏菌病血清阳性的几率降低了4.10[95%置信区间3.20 - 5.00；P = 0.003]。这一结果使我们推测，小反刍兽的Rev-1疫苗接种降低了混养牛群中布鲁氏菌微生物的压力，并有助于降低这些牛群中牛布鲁氏菌病的流行率。
