Rothia mucilaginosa is part of the normal flora of the oral cavity and is typically is not associated with acute infection. However, growing evidence suggests that Rothia mucilaginosa can be an opportunistic pathogen in immunocompromised hosts. We present a case of Rothia bacteremia in a patient with a compromised immune system due to human immunodeficiency virus (HIV) and stage IV bulky diffus...

Granulicatella adiacens is a Gram-positive coccus, formerly grouped with nutritionally variant Streptococcus, often found as commensal bacteria of the human oral cavity, urogenital tract, and gastrointestinal tract. Prior case reports have demonstrated Granulicatella spp. as a pathogen that can cause bacteremia and infective endocarditis particularly of prosthetic valves and pacemaker leads. He...

We use three-dimensional holographic particle tracking to perform microrheological measurements of model gelled media, including the polysaccharide pellicle of dental biofilms created by the common cariogenic oral pathogen Streptococcus mutans. Nanometerresolution video-rate holographic tracking of embedded colloidal spheres provides accurate measurements of the gels’ complex viscoelastic modul...

The recent investigation of a gene cluster encoding for a hybrid PKS-NRPS metabolite in the oral pathogen Streptococcus mutans UA159 yielded evidence that this natural product might play an important role regulating a range of stress tolerance factors. We have now characterized the major compound generated from this gene cluster, mutanobactin A, and demonstrated that this secondary metabolite i...

The first ever case of spondylodiscitis caused by Clostridium ramosum in an elderly immunocompetent patient has been reported. C. ramosum is usually an intestinal bacterium but may occasionally be isolated in clinical specimens as an opportunistic pathogen. This report shows that this anaerobic organism can cause bone tropism without there having been any contamination due to spinal surgery. Th...

background and aims. helicobacter pylori is a microaerophilic gram-negative spiral organism. it is recognized as the etiologic factor for peptic ulcers, gastric adenocarcinoma and gastric lymphoma. recently, it has been isolated from dental plaque and the dorsum of the tongue. this study was designed to assess the association between h. pylori and oral lesions such as ulcerative/inflammatory le...

Pseudomonas aeruginosa is the major bronchopulmonary pathogen affecting adolescents and adults with cystic fibrosis.' It is not susceptible to any oral antimicrobial agents generally available and is conventionally treated with intravenous chemotherapy. In patients requiring frequent or prolonged treatment, however, thrombophlebitis of peripheral veins may necessitate central venous access. We ...

Haemophilus parainfluenzae is a common inhabitant of the human upper respiratory tract of the normal oral microflora. We report three men who had been having unprotected sex with men (MSM) and subsequently acquired H. parainfluenzae urethritis, which was confirmed by 16S rRNA gene sequencing analysis. Two men were treated with ceftriaxone and doxycycline, and the third man was treated with clar...

Abstract The emotion disgust motivates the avoidance of pathogens and contaminants. Individuals differ in their tendency to experience this is referred as pathogen sensitivity. Yet, it remains unclear which differences psychological processes are captured by We tested two hypotheses about how information processing structure underlying might give rise individual Participants ( n = 998) rated pe...

Gram-negative bacillary carriage: a survey of 120 healthy individuals. Chest 1999; 115: 1570–5. 12. Yoneyama T, Yoshida M, Ohrui T et al. Oral care reduces pneumonia in older patients in nursing homes.[see comment]. J Am Geriatr Soc 2002; 50: 430–3. 13. DeRiso AJ, Ladowski JS 2nd, Dillon TA et al. Chlorhexidine gluconate 0.12% oral rinse reduces the incidence of total nosocomial respiratory inf...