Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Prevalence, molecular characterization, transmission dynamics and cost analysis of bovine tuberculosis in Morocco.

Auteur : Yahyaoui Azami, Hind

Université de soutenance : University of Basel

Grade : Doktors der Philosophie 2018

Résumé partiel
Bovine tuberculosis is a chronic disease, caused by M. bovis, mycobacteria which belongs to the mycobacterium tuberculosis complex ; it is notable for having one of the broadest spectrum of hosts. The preferred host of M. bovis is cattle, but it has the ability to infect humans and a wide range of domestic animals. In Morocco, cattle production is one of the most important components of the agricultural economy ; a sector which contributes heavily to the development of the Moroccan economy. The development of this sector is faced by many problems, like poor infrastructure, lack of services and climate change, in addition to infectious diseases like bovine tuberculosis Bovine tuberculosis is a zoonosis which affects the livestock industry, the public health sector and wildlife reservoirs. BTB has also effects like international trade restrictions for countries where BTB is endemic. Tourism and other areas of public and private interest could also be affected indirectly by BTB infection. The respiratory route is considered to be the primary mode of infection between cattle. In addition, M. bovis is largely transmitted to humans through consumption of unpasteurized milk, but there is also the possibility of inhalation of aerosols due to contact with cattle. Bovine tuberculosis in endemic in Morocco, the prevalence in Moroccan cattle is estimated at 18% (95% CI : 16.5%-20.3%), and 33% (95% CI : 31%-35%) at the individual and the herd level respectively, but the human burden needs further clarification. A prevalence study have been conducted in Sidi Kacem province in Morocco in 2012, 1201 cattle were screened using single comparative intradermal tuberculin skin test, the apparent prevalence was 20.4% and 57.7% in the individual and herd level respectively. The individual prevalence found in the present study is in line with the last national survey conducted in 2004 in collaboration with the FAO in Morocco.

Présentation (OATD)

Version intégrale