Ethiopia: Vaccination reduces severity and spread of TB in cattle

Published 2024년 3월 29일

Tridge summary

A collaborative study by the University of Cambridge and Penn State University has made significant strides in the fight against bovine tuberculosis (TB) by demonstrating that vaccinating cattle with the Bacillus Calmette-Guérin (BCG) vaccine can drastically reduce the severity and transmission of the disease. Conducted in Ethiopia, the research showed that BCG vaccination could decrease TB transmission among cattle by nearly 90%, benefiting both vaccinated and unvaccinated animals. This breakthrough suggests that routine vaccination of calves could be a viable strategy for controlling and potentially eliminating TB in Ethiopia's dairy sector, offering hope for economic relief in affected regions worldwide.

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Original content

A new study led by the University of Cambridge and Penn State University has shown that vaccination not only reduces the severity of bovine tuberculosis (TB) in infected cattle but also reduces transmission. This was the first study to show that Bacillus Calmette-Guérin (BCG) vaccinated cattle infected with TB are “substantially less infectious to other cattle”. According to researchers the indirect effect of the vaccine “beyond its direct protective effect” had not been measured before. The study, which was carried out in Ethiopia, examined the BCG vaccine’s ability to directly protect cattle that receive it, as well as to indirectly protect both vaccinated and unvaccinated cattle by reducing TB transmission Andrew Conlan, associate professor of epidemiology at the University of Cambridge’s Department of Veterinary Medicine and a corresponding author of the study, said researchers found that BCG vaccination reduces TB transmission in cattle by almost 90%. “Vaccinated cows also ...

Source: AgriLand