The survival of pooled plaque bacteria and a mixed suspension of Streptococcus mutans, Streptococcus sanguis, Streptococcus mitis, and Streptococcus saliuarius were tested in three transport media. A new, non-nutritive, reduced transport fluid, RTF, was compared with VMG II and SBL, two recognized transport media. Specimens were stored in several vials of each medium and held at either 10°C or ...

Four blood culture isolates of Streptococcus mitis were found to be resistant to penicillin (MIC, 16 to 32 micrograms/ml) and gentamicin (MIC, 128 or 1,000 micrograms/ml), and the two antibiotics demonstrated a lack of in vitro synergy. As shown by polymerase chain reaction assays, the structural gene known to encode high-level gentamicin resistance in Enterococcus faecalis, Enterococcus faeciu...

The following organisms have shown in vitro sensitivity to DBLTM Cefotaxime Sodium for Injection. Gram-positive: Staphylococci spp, including coagulase-positive, coagulase-negative and penicillinase-producing strains. Streptococci spp, including β-haemolytic and other streptococci such as Streptococcus mitis (viridans), Streptococcus pneumoniae. (Many strains of enterococci, e.g. Streptoco...

Evidence has been obtained which indicates that the possession of glycogen by Streptococcus mitis favors its survival during starvation.

Eight optochin-susceptible (Opt(s)) alpha-hemolytic (viridans) streptococcus isolates were characterized at the molecular level. These isolates showed phenotypic characteristics typical of both viridans streptococci and Streptococcus pneumoniae. Comparison of the sequence of housekeeping genes from these isolates with those of S. pneumoniae, Streptococcus mitis, Streptococcus oralis, and Strept...

1. We have produced arthritis in 50 per cent. of the rabbits injected with Streptococcus mitis. 2. The character of the arthritis is identical with that produced by Micrococcus rheumaticus. 3. The exudate in and about the joints partakes of the same nature as that caused by Streptococcus rheumaticus. 4. Bacteriological studies show that Streptococcus mitis can be recovered from about one third ...

The genetically diverse viridans group streptococci (VGS) are increasingly recognized as the cause of a variety of human diseases. We used a recently developed multilocus sequence analysis scheme to define the species of 118 unique VGS strains causing bacteremia in patients with cancer; Streptococcus mitis (68 patients) and S. oralis (22 patients) were the most frequently identified strains. Co...

Penicillin susceptibility determinations made for 14 strains of Streptococcus mitior by two different broth dilution tests revealed small numbers of tolerant strains regardless of the volumes (0.01 and 0.1 ml) of subcultured broth. The addition of penicillinase to the subculture medium increased the number of tolerant strains significantly in 0.1 ml of subcultured broth, demonstrating that the ...