Global Overview of Group B Streptococcus (GBS) in Dairy Cattle: Prevalence, Distribution, and Association with Mastitis - A Systematic Review and Meta-analysis
| Author | Leila Dolatshah | en |
| Author | Hadis Shahriari | en |
| Author | Abdollah Derakhshandeh | en |
| Author | Amin Salehi-Abargouei | en |
| Author | Maryam Sadeh | en |
| Orcid | Leila Dolatshah [0000-0001-7323-894X] | en |
| Orcid | Hadis Shahriari [0009-0000-5704-2381] | en |
| Orcid | Abdollah Derakhshandeh [0000-0002-1878-1103] | en |
| Orcid | Amin Salehi-Abargouei [0000-0002-7580-6717] | en |
| Orcid | Maryam Sadeh [0000-0002-1019-5038] | en |
| Issued Date | 2026-09-30 | en |
| Abstract | Context: Group B Streptococcus (GBS) remains one of the most important contagious pathogens associated with bovine mastitis, causing substantial economic losses in dairy production and raising concerns regarding antimicrobial resistance. Evidence Acquisition: A PRISMA-based systematic review (2000 - 2022) analyzed studies on GBS in cattle using multiple databases, with independent screening, data extraction, and meta-analysis in STATA. Results: From 1,691 records, 115 studies were included. GBS prevalence in dairy cows was 5.9% by culture and 16.2% by PCR, with a mastitis prevalence of 35%. Antimicrobial resistance was notable, particularly to penicillin and tetracycline. The review primarily addresses prevalence in cattle and milk samples rather than direct transmission to humans. Discussion: Standardized diagnosis, improved control strategies, and stronger antimicrobial stewardship are urgently needed to reduce GBS-related economic and health impacts in dairy farming. | en |
| DOI | https://doi.org/10.5812/jjm-171607 | en |
| URI | https://brieflands.com/journals/jjm/articles/171607 | en |
| Keyword | Group B <i>Streptococcus</i> | en |
| Keyword | Mastitis | en |
| Keyword | Cattle | en |
| Keyword | Drug Resistance | en |
| Keyword | Global Health | en |
| Publisher | Brieflands | en |
| Title | Global Overview of Group B <i>Streptococcus</i> (GBS) in Dairy Cattle: Prevalence, Distribution, and Association with Mastitis - A Systematic Review and Meta-analysis | en |
| Type | Systematic Review | en |