Strain Profile
· NCBI Strain Taxon
1299318
NCBI Taxonomy's node for this specific strain. A different identifier from the culture-collection deposit numbers below, which name a physical stock rather than a taxonomic node.
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Enterococcus faecium L3
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Human-origin
Where this strain was first isolated, curated from the literature and culture-collection catalogs. It describes provenance only — not suitability, and not benefit.
How we classify this →
Sequenced
Whether a public genome assembly is linked for this strain. Without one the genome screens cannot run. It is not a verdict on the organism.
How we classify this →
Public genome assembly available
Enterococcus faecium strain L3 is a gram-positive lactic acid bacterium. Research includes in vitro studies of its antimicrobial properties and functional characteristics in food applications, animal and observational studies, and randomized controlled trials examining its associations with changes in infection rates and gastrointestinal health, often studied as part of multi-strain probiotic formulations.
Where it's been studied Tags come from a conservative keyword scan of each paper's title, abstract, and summary. A tag is research coverage, not measured effect. How we classify this →
Share of this strain's 62 body-system-tagged papers that concern each system. Research coverage, not measured effect.
+3 more systems
Symptoms in the research A tag means the paper's text names the symptom or condition — research coverage, not evidence of benefit. How we classify this →
Share of this strain's 21 symptom-tagged papers that mention each symptom or condition. Research coverage, not evidence of benefit.
Research Study-type filters use AI-classified labels, audited but not guaranteed — check the paper itself before leaning on one. How we classify this →
95 papers reference this strain in the probiotic database.
Match confidence
How strongly this paper was matched to this strain when the corpus was linked. It orders the list — it says nothing about the study's quality or its findings.
How we classify this →
2026
OBSERVATIONAL
2026
ANIMAL
2024
OBSERVATIONAL
2023
OBSERVATIONAL
2023
ANIMAL
2023
ANIMAL
2022
RCT
2022
OBSERVATIONAL
2022
OBSERVATIONAL
2022
OBSERVATIONAL
2022
RCT
2022
IN_VITRO
2022
RCT
2021
IN_VITRO
2021
RCT
2021
RCT
2021
RCT
2020
RCT
2020
RCT
2020
ANIMAL
Browse all 95 papers →
STUDY OF THE ACTIVITY OF A POSTBIOTIC BASED ON THE ENTEROCOCCUS FAECIUM L-3 STRAIN TO OPTIMIZE THE QUALITATIVE AND QUANTITATIVE COMPOSITION OF HUMAN MICROBIOTA UNDER CONDITIONS OF LONG-TERM ISOLATION IN CONFINED HABITAT
· Epidemiology and Infectious Diseases
The effect of a combination of metformin and the probiotic Enterococcus faecium L3 on glucose tolerance and its absorption in the small intestine in rats with type 2 diabetes mellitus
· Сибирский научный медицинский журнал
A Controlled, Retrospective, Single-Center Study to Evaluate the Role of a Probiotic Mixture Administered during Pregnancy in Reducing Streptococcus Agalactiae Swab Positivity and the Frequency of Premature Rupture of Amniochorionic Membranes
· Microorganisms
KHẢO SÁT HIỆU QUẢ CỦA CHẾ PHẨM PROBIOTIC ENTEROCOCCUS FAECIUM L3 TRÊN NGƯỜI TÌNH NGUYỆN KHỎE MẠNH
· Tạp chí Khoa học và Công nghệ nhiệt đới
Probiotics and Autoprobiotics in the Treatment of Experimental Vaginitis
· Antibiot Khimioter = Antibiotics and Chemotherapy
SARS-CoV-2 Spike Protein-Expressing Enterococcus for Oral Vaccination: Immunogenicity and Protection
· Vaccines
Personalized symbiontic therapy for children with functional digestive disorders
· Experimental and Clinical Gastroenterology
Experience of using a probiotic strain of Enterococcus in long-term nutritional support for premature children
· Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics)
Irritable bowel syndrome therapy in Vietnam with probiotic enterococci
· Experimental and Clinical Gastroenterology
The clinical effectiveness of probiotics and autoprobiotics in treatment of Helicobacter pylori-associated dyspepsia
· Russian Journal of Infection and Immunity
The use of E. faecium probiotic and autoprobiotic in patients with type 2 diabetes mellitus
· HERALD of North-Western State Medical University named after I I Mechnikov
Surface expression of SARS-CoV-2 epitopes in Enterococcus faecium L3 for live oral vaccine against new coronavirus infection
· Medical academic journal
Personalized symbionic therapy of campylobacteriosis protracted course in children
· Experimental and Clinical Gastroenterology
The need for individual selection of probiotics containing lactobacilli and enterococci to increase the effectiveness of therapy for campylobacteriosis
· Experimental and Clinical Gastroenterology
Treatment With a Probiotic Mixture Containing Bifidobacterium Animalis Subsp. Lactis BB12 and Enterococcus Faecium l3 for the Prevention of Allergic Rhinitis in Children: A Randomized Controlled Trial
· Preprints.org
Treatment with a Probiotic Mixture Containing Bifidobacterium animalis Subsp. Lactis BB12 and Enterococcus faecium L3 for the Prevention of Allergic Rhinitis Symptoms in Children: A Randomized Controlled Trial
· Nutrients
Use of a probiotic mixture containing Bifidobacterium animalis subsp. lactis BB-12 and Enterococcus faecium L3 as prophylaxis to reduce the incidence of acute gastroenteritis and upper respiratory tract infections in children
· Minerva Pediatrics
Efficacy and safety of autoprobiotic therapy in patients with type 2 diabetes mellitus
· Medical alphabet
Impact of a two-bacterial-strain formula, containing Bifidobacterium animalis lactis BB-12 and Enterococcus faecium L3, administered before and after therapy for Helicobacter pylori eradication
· Minerva Gastroenterologica e Dietologica
THE USE OF A PROBIOTIC STRAIN FOR GASTROENTERITIS IN PIGLETS
· Vestnik Burâtskoj gosudarstvennoj selʹskohozâjstvennoj akademii im. V.R. Fillipova.
Discussion
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Citations
Selected papers that name this strain.
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[1]
Source →The effect of a combination of metformin and the probiotic Enterococcus faecium L3 on glucose tolerance and its absorption in the small intestine in rats with type 2 diabetes mellitus· Сибирский научный медицинский журнал · 2026
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[2]
PMID 39458288 →A Controlled, Retrospective, Single-Center Study to Evaluate the Role of a Probiotic Mixture Administered during Pregnancy in Reducing Streptococcus Agalactiae Swab Positivity and the Frequency of Premature Rupture of Amniochorionic Membranes· Microorganisms · 2024
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[3]
Source →Personalized symbionic therapy of campylobacteriosis protracted course in children· Experimental and Clinical Gastroenterology · 2022
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[4]
Source →Personalized symbiontic therapy for children with functional digestive disorders· Experimental and Clinical Gastroenterology · 2022
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[5]
Source →The use of E. faecium probiotic and autoprobiotic in patients with type 2 diabetes mellitus· HERALD of North-Western State Medical University named after I I Mechnikov · 2022
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[6]
Source →Treatment With a Probiotic Mixture Containing Bifidobacterium Animalis Subsp. Lactis BB12 and Enterococcus Faecium l3 for the Prevention of Allergic Rhinitis in Children: A Randomized Controlled Trial· Preprints.org · 2021
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[7]
PMID 32506882 →Use of a probiotic mixture containing Bifidobacterium animalis subsp. lactis BB-12 and Enterococcus faecium L3 as prophylaxis to reduce the incidence of acute gastroenteritis and upper respiratory tract infections in children· Minerva Pediatrics · 2021
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[8]
Source →Efficacy and safety of autoprobiotic therapy in patients with type 2 diabetes mellitus· Medical alphabet · 2020
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[9]
PMID 32272820 →Impact of a two-bacterial-strain formula, containing Bifidobacterium animalis lactis BB-12 and Enterococcus faecium L3, administered before and after therapy for Helicobacter pylori eradication· Minerva Gastroenterologica e Dietologica · 2020
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[10]
Source →Enterococcus as probiotics: what is the advantage?· Nutrafoods - International Journal on Nutraceuticals, Functional Foods and Novel Foods · 2019