Sites of infection associated with Streptococcus anginosus group among children

Furuichi, Mihoko; Horikoshi, Yuho

doi:10.1016/j.jiac.2017.09.011

Cited by 35 publications

(39 citation statements)

References 18 publications

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“…Previously Furuichi and Horikoshi (2018), revealed a higher occurrence of polymicrobial infections (71.4%, n = 10) and included anaerobic microorganisms, mainly Peptostreptococcus spp. (14%, n = 2), Bacteroides spp.…”

Section: Co-infectionmentioning

confidence: 96%

From Normal Flora to Brain Abscesses: A Review of Streptococcus intermedius

2020

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Streptococcus intermedius is a β-hemolytic Gram-positive member of the Streptococcus anginosus group (SAG). Despite being a part of the normal microbiota, it is one of the most common pathogens associated with brain and liver abscesses and thoracic empyema, increasing as a result the morbidity and mortality rates in affected patients. Though there are numerous published case reports on S. intermedius infections, it is still understudied compared to other SAG members. Our knowledge of the genomic factors contributing to its dissemination to the brain and abscess development is also limited to few characterized genes. In this review, we summarize our current knowledge on S. intermedius identification methods, virulence factors, and insight provided by the whole-genome and correlate patients' metadata, symptoms, and disease outcome with S. intermedius infections in 101 recent case reports obtained from PubMed. This combined information highlights the gaps in our understanding of S. intermedius pathogenesis, suggesting future research directions to unveil the factors contributing to abscess development.

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Section: Co-infectionmentioning

confidence: 96%

From Normal Flora to Brain Abscesses: A Review of Streptococcus intermedius

2020

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“…Pyogenic infections due to SAG bacteremia were reported to affect brain, lungs and liver [6,7]. SAG infections have also been described in children and patients with immunodeficiency conditions such as elderly patients or HIV patients [8,9]. SAG bacteria are uncommonly reported as a cause of osteomyelitis and the involvement of a joint represent a rare event [10].…”

Section: Introductionmentioning

confidence: 99%

Late onset periprosthetic joint infection of the knee caused by Streptococcus anginosus. Case presentation and literature review

Marongiu

Conte

Verderosa

et al. 2021

J Infect Dev Ctries

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Periprosthetic joint infection (PJI) is one of the most dramatic complications of joint arthroplasty. Although streptococcal bone and joint infections are less common than staphylococcal cases, their role as causative agents of bone and joint remains significant accounting for at least 10% of PJIs. Streptococcus anginosus group (SAG) bacteria are usually found in the normal flora of the urogenital tract, intestinal tract and oropharynx and could cause pyogenic infections to affect brain, lungs and liver. SAG bacteria are uncommonly reported as a cause of osteomyelitis and the involvement of a joint represent a rare event. S. anginosus has been anecdotical related to implant devices infections such as vascular prosthesis or orthopedic implants, however, PJI of the knee has never been fully reported before. We describe the case of a late onset periprosthetic knee infection due to Streptococcus anginosus successfully treated by a two-stage revision arthroplasty and postoperative parenteral Vancomycin, (2 g per day) and Levofloxacin (750 mg per day) for 4 weeks and then oral Levofloxacin for a further 2 weeks.

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“…It also has been isolated from infections of the head and neck, central nervous system, gastrointestinal tract and blood [6,9]. Furthermore, S. anginosus can cause infections of the genitourinary tract [6,9,11]. It has been associated with acute glomerulonephritis [12], bacterial vaginosis [13,14], urge urinary incontinence [2] and urinary tract infections [15].…”

Section: Introductionmentioning

confidence: 99%

Characterization and spontaneous induction of urinary tract Streptococcus anginosus prophages

Brassil

Wolfe

et al. 2020

Journal of General Virology

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Streptococcus anginosus is an often overlooked and understudied emerging pathogen inhabiting many areas of the human body. Through our sequencing of S. anginosus strains isolated from the female bladder microbiota, we detected numerous prophage sequences. Bioinformatic analysis of these sequences identified 17 distinct groups of S. anginosus prophages. The majority of these phages exhibit no sequence homology to previously characterized temperate or virulent phage sequences, indicating an unexplored diversity of Streptococcus phages. By culturing these bacterial isolates, we confirmed that the prophages of five of these groups are capable of induction. One of these putative phages was imaged, the first such evidence of an S . anginosus virus-like particle; it exhibits morphological characteristics of siphoviruses.

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Sites of infection associated with Streptococcus anginosus group among children

Cited by 35 publications

References 18 publications

From Normal Flora to Brain Abscesses: A Review of Streptococcus intermedius

From Normal Flora to Brain Abscesses: A Review of Streptococcus intermedius

Late onset periprosthetic joint infection of the knee caused by Streptococcus anginosus. Case presentation and literature review

Characterization and spontaneous induction of urinary tract Streptococcus anginosus prophages

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