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.

Paratuberculosis prevalence, economic and public health significance in animal populations is well documented in most of the developed countries. In African countries however, information on paratuberculosis is sparse mainly due to lack of surveillance and research on the disease. In Tanzania, the disease was first reported in Kilimanjaro in year 1960 and up until year 2014, different cases have been reported in almost all agro ecological zones of the country, but there is no epidemiological information to link the cases. This creates an impression that the disease is absent in Tanzania. However, it is recently realized that in any African country that has done some surveillance, the disease has been confirmed to be present. The aim of the present review is to revisit the trend of paratuberculosis in Tanzania from 1960 when the disease was first reported to the current situation in year 2022. Attempt is made to highlight the possible link between the cases and suggest future strategies to enable the country grips with the disease. It is anticipated that this review is going to raise awareness on paratuberculosis in Tanzania and catalyze the institution of paratuberculosis surveillance and control programs in Tanzania.