ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
Molecular epidemiology of Streptococcus agalactiae isolated from mastitis in Brazilian dairy herds.
Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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36 citing papers in PubMed, 66 citations in OpenAlex.
- Incidence of Streptococcus spp. and whole genome sequencing of Streptococcus agalactiae isolated from cow's milk samples in Brazil.Veterinary research communications · 2026Article
- Home is where the host is: evolutionary history of geographic spread, host switching and adaptive genomic signatures in two generalist group BMicrobial genomics · 2026Article
- Dairy FarmPathogens (Basel, Switzerland) · 2026Article
- Molecular Detection of Virulence Genes and Multi-drug Resistance Patterns inArchives of Razi Institute · 2025Article
- Effects of copper stress on biofilm and capsule gene expression of Streptococcus agalactiae isolated from bovine mastitis.Archives of microbiology · 2025Article
- Interference ofVeterinary sciences · 2024Article
- Long-Term Co-Circulation of Host-Specialist and Host-Generalist Lineages of Group BAntibiotics (Basel, Switzerland) · 2024Article
- Characterization of Virulence Factors and Antimicrobial Susceptibility ofAnimals : an open access journal from MDPI · 2024Article
- Article
- Bovine mastitis, a worldwide impact disease: Prevalence, antimicrobial resistance, and viable alternative approaches.Veterinary and animal science · 2023Review
- Zinc Oxide Quantum Dots May Provide a Novel Potential Treatment for Antibiotic-ResistantMolecules (Basel, Switzerland) · 2023Article
- Relationship between Biofilm Production and High Somatic Cell Count inPathogens (Basel, Switzerland) · 2023Article
- Molecular Epidemiology of Group BInfection and drug resistance · 2023Article
- Genotypic and antimicrobial susceptibility ofFrontiers in veterinary science · 2023Article
- Antimicrobial Resistance and Virulence Genes ofJournal of veterinary research · 2022Article
- Virulence Factor Genes and Cytotoxicity ofMicrobiology spectrum · 2022Article
- Circulation ofApplied and environmental microbiology · 2022Article
- Bacteriocin ProducingMicroorganisms · 2022Article
- Detection of virulence associated genes inIranian journal of veterinary research · 2022Article
- Molecular epidemiology, drug resistance, and virulence gene analysis ofFrontiers in cellular and infection microbiology · 2022Article
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Streptococcus agalactiae is one of the most common pathogens leading to mastitis in dairy herds worldwide; consequently, the pathogen causes major economic losses for affected farmers. In this study, multilocus sequence typing (MLST), genotypic capsular typing by multiplex polymerase chain reaction (PCR), and virulence gene detection were performed to address the molecular epidemiology of 59 bovine (mastitis) S. agalactiae isolates from 36 dairy farms located in the largest milk-producing mesoregions in Brazil (Minas Gerais, São Paulo, Paraná, and Pernambuco). We screened for the virulence genes bac, bca, bibA, cfb, hylB, fbsA, fbsB, PI-1, PI-2a, and PI-2b, which are associated with adhesion, invasion, tissue damage, and/or immune evasion. Furthermore, five capsular types were identified (Ia, Ib, II, III, and IV), and a few isolates were classified as non-typeable (NT). MLST revealed the following eight sequence types (STs): ST-61, ST-67, ST-103, ST-146, ST-226, ST-314, and ST-570, which were clustered in five clonal complexes (CC64, CC67, CC103, CC17, and CC314), and one singleton, ST-91. Among the virulence genes screened in this study, PI-2b, fbsB, cfb, and hylB appear to be the most important during mastitis development in cattle. Collectively, these results establish the molecular epidemiology of S. agalactiae isolated from cows in Brazilian herds. We believe that the data presented here provide a foundation for future research aimed at developing and implementing new preventative and treatment options for mastitis caused by S. agalactiae.
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