Reyes, J., Chaffer, M., Rodriguez-Lecompte, J. C., Sánchez, J., Zadoks, R. N. , Robinson, N., Cardona, X., Ramírez, N. and Keefe, G.P. (2017) Short communication: molecular epidemiology of Streptococcus agalactiae differs between countries. Journal of Dairy Science, 100(11), pp. 9294-9297. (doi: 10.3168/jds.2017-13363) (PMID:28918144)
Full text not currently available from Enlighten.
Abstract
Group B Streptococcus or Streptococcus agalactiae continue to be challenging for milk quality programs in countries with emerging dairy industries, such as Colombia, where high prevalence has been reported. Molecular typing of isolates is needed to understand the variability and epidemiology of this pathogen and to develop effective control and eradication programs. We characterized the molecular profile of Strep. agalactiae isolated from cows with subclinical mastitis in 21 Colombian dairy herds and measured diversity within and between herds using multilocus sequence typing. Isolates belonged to sequence type 248 [clonal complex (CC) 103; n = 30), ST1 (CC1; n = 6) or ST22 (CC22; n = 4)], whereas members of CC67/61, the dominant type in North America, were not detected. Presence of multiple clonally unrelated sequence type within a herd was common, which contrasts with the situation in European countries and suggests introduction from multiple sources. Our results demonstrate that conclusions from molecular epidemiological studies in 1 region cannot necessarily be extrapolated to other regions, and no single bovine-adapted CC of Strep. agalactiae exists in Colombia. Improvements in internal and external biosecurity will be needed to reduce Strep. agalactiae prevalence in Colombian dairy herds.
| Item Type: | Articles |
|---|---|
| Keywords: | Streptococcus agalactiae, molecular epidemiology, subclinical mastitis. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Zadoks, Professor Ruth |
| Authors: | Reyes, J., Chaffer, M., Rodriguez-Lecompte, J. C., Sánchez, J., Zadoks, R. N., Robinson, N., Cardona, X., Ramírez, N., and Keefe, G.P. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine |
| Journal Name: | Journal of Dairy Science |
| Publisher: | Elsevier Inc. |
| ISSN: | 0022-0302 |
| ISSN (Online): | 1525-3198 |
| Published Online: | 13 September 2017 |
University Staff: Request a correction | Enlighten Editors: Update this record
Deposit and Record Details
Deposit and Record Details