ArticleBMC veterinary research2017
Characterization and susceptibility of streptococci and enterococci isolated from Nile tilapia (Oreochromis niloticus) showing septicaemia in aquaculture and wild sites in Egypt.
Article in BMC veterinary research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
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Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it, 116 citations in OpenAlex.
- Antimicrobial use, residues and resistance in fish production in Africa: systematic review and meta-analysis.BMC veterinary research · 2024Pooled it
- Pathogenic potential of MDR Enterococcus faecalis in tilapia and mullet with insight into virulence traits, antibiotic resistance genes, and multidrug resistance patterns.Scientific reports · 2026Article
- Draft genome sequence of fish pathogenicMicrobiology resource announcements · 2026Article
- Characterization and antibiogram of bacterial isolates from diseased farmed Nile tilapia in Beheira governorate, Egypt.BMC veterinary research · 2026Article
- Protective Effect of Nanobodies Targeting Sip Protein AgainstAnimals : an open access journal from MDPI · 2025Article
- Bacterial Pathogens and Their Antimicrobial Resistance in Farmed Nile Tilapia Experiencing "Summer Mortality" in Kafr El-Sheikh, Egypt.Microorganisms · 2025Article
- Phenotypic and genotypic characterization of antimicrobial resistance in Enterococcus spp. Isolated from the skin microbiota of channel catfish (Ictalurus punctatus) in Southeastern United States.BMC microbiology · 2025Article
- In-feed oxolinic acid induces oxidative stress and histopathological alterations in Nile tilapiaToxicology reports · 2025Article
- Bacterial Diversity in Aquacultured African Catfish and Source Pond Water in Buea, Cameroon.International journal of microbiology · 2025Article
- Summer mortality syndrome bacterial pathogens in farmed Nile tilapia (Open veterinary journal · 2024Article
- luxS contributes to intramacrophage survival of Streptococcus agalactiae by positively affecting the expression of fruRKI operon.Veterinary research · 2023Article
- Review: Effect of Experimental Diets on the Microbiome of Productive Animals.Microorganisms · 2023Review
- Antibiotic Resistance ofAnimals : an open access journal from MDPI · 2023Article
- Effects of Bacillus spp. Mixture on Growth, Immune Responses, Expression of Immune-Related Genes, and Resistance of Nile Tilapia Against Streptococcus agalactiae Infection.Probiotics and antimicrobial proteins · 2023Article
- Limited Probiotic Effect ofAnimals : an open access journal from MDPI · 2023Article
- Virulence and antibiotic-resistance genes in Enterococcus faecalis associated with streptococcosis disease in fish.Scientific reports · 2023Article
- Prevalence, Antimicrobial Susceptibility and Resistance Gene Detection in Bacteria Isolated from Goldfish and Tiger Barb from Ornamental Fish Farms of Tamil Nadu.Indian journal of microbiology · 2022Article
- Endolysins against Streptococci as an antibiotic alternative.Frontiers in microbiology · 2022Review
- Systems-thinking approach to identify and assess feasibility of potential interventions to reduce antibiotic use in tilapia farming in Egypt.Aquaculture (Amsterdam, Netherlands) · 2021Article
- Bayesian genomic models boost prediction accuracy for survival to Streptococcus agalactiae infection in Nile tilapia (Oreochromus nilioticus).Genetics, selection, evolution : GSE · 2021Article
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundThe present investigation was an endeavor into the elucidation of the disease-causing pathogen of streptococcosis in Nile tilapia (Oreochromis niloticus) in Egypt affecting adult fish cultured and wild fish in the Nile river. Fish were obtained from commercial fishermen, collected as part of their routine fishing activities. The researchers observed the routine fishing process and selected fish for use in the study, at the point of purchase from the fisherman.
resultsDiseased fish showed exophthalmia with accumulation of purulent and haemorrhagic fluid around eyes, and ventral petechial haemorrhages. The Post mortem examination revealed, abdominal fat haemorrhage, pericarditis and enlargement of the liver, spleen and kidney. Gram-stained smears revealed the presence of Gram-positive cocci, β-hemolytic, oxidase and catalase negative. Analysis of the 16S rRNA gene confirmed that the 17 tilapia isolates studied were 6/17 Enterococcus faecalis, 2/17 Enterococcus gallinarum, 3/17 Streptococcus pluranimalium, 2/17 Aerococcus viridans, 1/17 isolate of each Streptococcus dysgalactiae, Streptococcus anginosus, Lactococcus garvieae and Granulicetella elegans/Leuconostoc mesenteroides cremoris. It should be noted that there was no mixed infection. Multiple resistance was observed and the most frequent antibiotic combination was penicillin, ampicillin, vancomycin, chloramphenicol, rifampicin, ofloxacin, clindamycin, erythromycin and tetracycline representing eight classes.
conclusionsConsequently, we concluded that Streptococcus species are an emerging pathogen for Nile tilapia aquaculture in Egypt and to be considered as a new candidate in the warm water fish diseases in Egypt with special reference to L. garvieae, S. dysgalactiae in addition to L. mesenteroides cremoris which was not reported before from tilapia and taking into consideration their zoonotic implications for public health.
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Registered trials
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