Zoonotic infections among cattle in
urban and peri urban areas in
-Brucella abortus bacteria in milk
Kim Rock, DVM, MSc Presenter
with input from Denis Rwabiita Mugizi, DVM, MSc
Why Gulu & Soroti?
now a post-conflict area
•Little is known about
• B. abortus is a bacteria that infects both animals
• Causes economic losses
• Decreased milk production & abortions
• Human infections from contact with infected
animals or milk products
• Cripples work force
Control of brucellosis = Control of brucellosis
in animals in humans
...are a source of livelihood to rural poor.
• School fees
• Drought power
To improve food security in peri-urban regions
of Gulu & Soroti, Uganda.
Objectives of the studies
• Is B. abortus present in Gulu & Soroti?
– Determine the prevalence of antibodies against B.
abortus in bulk milk
– Identify the bacterium in milk via culture and PCR
• What are the risk factors of brucellosis
transmission in cattle?
– Communicate, share & educate
A. 69% in Gulu & Soroti
Q. Have heard of Brucella or
no answer given
A. 29% in Gulu & Soroti answer,
Q. Do you take fresh milk?
Risk factors of transmission established
• Sharing of grazing grounds
• Keeping a large herd
•Outsourcing replacement stock
•Keeping mixed breeds
•Using hired animal attendants
• Molecular typing &
biotyping (PCR) of bacteria
• Map milk value chain
• Explore differences in
brucella dynamics in Gulu &
• Disseminate results along
with Makerere University
Take home message
• Brucella is present and it is a real human &
animal public health threat!
• How can we best reduce Brucella’s threat to a
safe and economically successful food supply?
• Communication of new scientific knowledge to
reduce human and animal infection.
• Collaboration with Ugandan partners and
researchers to encourage sustainability.
• Exploration of other species’ roles in infection
(sheep & goats.)
This study was supported by the Swedish Ministry of Foreign
Affairs as part of its special allocation on global food security,