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Barriers to vaccine use in small ruminants and poultry in Tanzania
2022
Williams,Sitira | Endacott,Isabella | Ekiri,Abel B. | Kichuki,Mirende | Dineva,Mariana | Galipo,Erika | Alexeenko,Vadim | Alafiatayo,Ruth | Mijten,Erik | Varga,Gabriel | Cook,Alasdair J.C.
Vaccination is an important disease prevention and control measure; however, vaccine adoption by livestock farmers in Tanzania is still low. This cross-sectional study examined the challenges to vaccine use faced by livestock owners and animal health professionals (AHPs) in Tanzania. A questionnaire was administered to 216 households that kept small ruminants and poultry and 19 AHPs' data were collected electronically via the survey platform Qualtrics, and descriptive statistics were performed. Households with poultry reported vaccinating mostly against Newcastle disease (91.7%), fowl pox (48.1%) and Gumboro disease (37.0%), whilst households with small ruminants reported contagious caprine pleuropneumonia (62.2%), sheep and goat pox (17.1%), foot-and-mouth disease (7.3%) and peste des petits ruminants (7.3%). The households' decision to vaccinate was mostly influenced by knowledge of diseases (82.4%), disease history on the farm (69.4%) and vaccine price (63.4%). Most households (54.6%) experienced challenges when purchasing vaccines, including high vaccine cost (78.0%), long distance from vaccine source (61.0%) and vaccine unavailability (21.2%). The findings suggest that improving the knowledge of livestock owners regarding the priority diseases and the benefits of vaccination, establishing more vaccine suppliers, improving vaccine distribution and access and training AHPs and households on appropriate vaccine storage and handling are necessary to improve vaccine adoption and ensure vaccine quality and effectiveness.
Afficher plus [+] Moins [-]Molecular characterisation of infectious bursal disease virus in Namibia, 2017
2019
Molini, Umberto(University of Namibia Faculty of Agriculture and Natural Resources School of Veterinary Medicine) | Aikukutu, Gottlieb(Central Veterinary Laboratory) | Kabajani, Juliet(International Atomic Energy Agency Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture) | Khaiseb, Siegfried(Central Veterinary Laboratory) | Cattoli, Giovanni(International Atomic Energy Agency Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture) | Dundon, William G.(International Atomic Energy Agency Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture)
Between July and September 2017, samples collected from six unvaccinated chickens in Namibia were shown to be positive for infectious bursal disease virus (IBDV) by RT-PCR. Partial sequence and phylogenetic analysis of the VP1 and VP2 genes from six viruses revealed that they all belong to the very virulent pathotype (Genogroup 3) and are genetically very similar to IBDVs identified in neighbouring Zambia. This is the first molecular characterisation of IBDV in Namibia and has implications on the control and management of the disease in the country.
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