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Research article - Peer-reviewed, 2014

Characterization of coagulase negative staphylococci from cases of subclinical mastitis in dairy cattle in Kampala, Uganda

Bjork S, Bage R, Kanyima BM, Andre S, Nassuna-Musoke MG, Owiny DO, Persson Y


Background: Coagulase negative staphylococci (CNS) are the most common pathogens leading to subclinical mastitis (SCM) in dairy cattle in Uganda. Coagulase negative staphylococci can vary between bacterial species in how they cause disease. The aim of the study was to characterize CNS, from cows with SCM in Uganda, at the species level. Findings: Quarter milk samples (n = 166) were collected from 78 animals with SCM. Bacteriological analyses were carried out at Makerere University, Kampala, Uganda and at the National Veterinary Institute (SVA), Uppsala, Sweden. The most common pathogens found in milk samples from cows with SCM were CNS (31.7%). Two species of CNS were found, S. epidermidis (85%) and S. haemolyticus (15%). Of the CNS isolates, 16/20 (80%) were positive for β-lactamase production (β+). 

Conclusions: In milk samples from cows with SCM caused by CNS, S. epidermidis was most prevalent, followed by S. haemolyticus


CNS; Staphylococcus epidermidis; Staphylococcus haemolyticus; MALDI-TOF

Published in

Irish Veterinary Journal
2014, Volume: 67, article number: 12

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