Introduction. Streptococcus constellatus collectively with Streptococcus anginosus and Streptococcus intermedius constitute the Streptococcus anginosus (formerly Streptococcus milleri) group. Though they are commonly associated with abscesses, bacteremia with subsequent septic thrombophlebitis is extremely rare, and resulting mortality is infrequent. Case Presentation. We report a case of a pre...

The associations of Streptococcus intermedius, S. constellatus, and S. anginosus (the three species of the S. milleri group) with clinical infections and sites of isolation were investigated by using a simple biochemical scheme to identify a collection of 153 clinical isolates. S. intermedius was associated with abscesses of the brain and liver, while both S. anginosus and S. constellatus were ...

Submit Manuscript | http://medcraveonline.com that cause congestion of the splenic circulation by abnormal cells, or thromboembolic conditions that produce obstruction of larger vessels. Splenic infarction of endovascular origin occurs when the splenic artery or one or more of its sub-branches become occluded with an infected or bland embolus or clot [2]. Streptococcus anginosus group is widely...

Pyogenic liver abscesses in the pediatric population are rare occurrences in the developed world. We present two cases of previously healthy males presenting with fever and abdominal pain found to have liver abscesses due to organisms in the Streptococcus anginosus group. The microbiology of S. anginosus along with the management and recommended treatment in children with liver abscesses is dis...

Previous studies of the antibiotic susceptibility of Streptococcus milleri group organisms have distinguished among species by using phenotypic techniques. Using 44 isolates that were speciated by 16S rRNA gene sequencing, we studied the MICs and minimum bactericidal concentrations of penicillin, ampicillin, ceftriaxone, and clindamycin for Streptococcus intermedius, Streptococcus constellatus,...

Several studies have demonstrated a close association between Streptococcus (S.) anginosus infection and head and neck cancer. Accumulation of 8-hydroxy-deoxyguanosine (8-OHdG), which may result from the continuous generation of reactive oxygen species associated with chronic inflammation, has been reported in human preneoplastic lesions and in cancerous tissues. The purpose of the present inve...

We recently reported cloning of Streptococcus anginosus (S. anginosus) DNA fragments containing the 16S ribosomal gene from DNA samples of surgical specimens of gastric cancers. To investigate the specificity of 5. anginosus infection. Southern blot analysis with S. anginosus 16S riboso mal DNA probe and PCR analysis with 5. anginosus-specific primers were performed in DNA samples prepared from...

The full-length sequences of the groESL genes (also known as cpn10/60) of Streptococcus anginosus, Streptococcus constellatus, Streptococcus gordonii, and Streptococcus sanguis and the near full-length sequence of the groESL genes of Streptococcus intermedius, Streptococcus bovis, Streptococcus mitis, Streptococcus mutans, Streptococcus oralis, and Streptococcus salivarius were determined. The ...