In their study of Streptococcus zymogenes, Sherman, Stark and Mauer (1937) stated that on the basis of a physiological study of a few of Dr. Lancefield's cultures, the Lancefield group D hemolytic streptococcus and Streptococcus zymogenes appeared to be the same. There was nothing essentially new in this suggestion: Lancefield and Hare (1935) had previously stated that the group D streptococci ...

Introduction: Orthodontist must take precautionary measures to protect patients from cross-infection by contaminated materials received the manufacturers. To minimize incidence of prior bonding an invitro study was done assess antibacterial activity chlorhexidine, povidone iodine and glutaraldehyde. Aim: compare 2% 5% glutaraldehyde on orthodontic bonding. Materials methods: A total 36 samples ...

asthma is a chronic inflammatory disorder of the airways, which is diagnosed by periodic symptoms of inflammation, bronchial spasm, and increased mucosal secretions. it has higher incidence among the preschool children. there are many contradictory reports based on the effect of asthma on oral health, however it has been hypothesized that asthma could lead to poor oral health. the objective of ...

background chlorhexidine gluconate (chx) is the most common antimicrobial agent used against oral pathogens, however information on its ability to inhibit and disrupt anaerobic single and multispecies biofilms is relatively unknown. objectives the purpose of this study was to test the efficacy of chx for its biofilm inhibition and disruption properties using crystal violet assay. materials and ...

DL 473 is a 3-[(4-cyclopentyl-1-piperazinyl)iminomethyl] rifamycin SV derivative which inhibited staphylococci, streptococci (including Streptococcus faecalis, Listeria species, and Bacteroides species. DL 473 was less active than rifampin against these species. DL 473 did not inhibit Enterobacteriaceae nor most Pseudomonas species. A combination of DL 473 and vancomycin or nafcillin tested aga...

Submit Manuscript | http://medcraveonline.com therapy for ABM has to be initiated before the aetiology is known. The emergence of antimicrobial resistance has added to this problem, and current recommendations are to identify targets for immunization, formulate preventive strategies and to carry out a rational empirical treatment [5-9]. Among neonates, Group B and non-Group B Streptococcus spec...

A 761-bp portion of the tuf gene (encoding the elongation factor Tu) from 28 clinically relevant streptococcal species was obtained by sequencing amplicons generated using broad-range PCR primers. These tuf sequences were used to select Streptococcus-specific PCR primers and to perform phylogenetic analysis. The specificity of the PCR assay was verified using 102 different bacterial species, in...

Streptococcus anginosus, Streptococcus intermedius and Streptococcus constellatus form a group of related streptococcal species, namely the Streptococcus Anginosus Group (SAG). The group, previously called "milleri" had been rarely described until 1980/1990 as source of infections. Nowadays SAG bacteria are often described as pathogens causing predominantly purulent infections. The number of in...

The Phoenix system (Becton Dickinson Diagnostic Systems, Sparks, MD) was evaluated for identification (ID) to the species level of streptococci and enterococci. Two hundred clinical isolates were investigated: beta-hemolytic streptococci (n = 50), Streptococcus pneumoniae organisms (n = 46), viridans group streptococci (n = 31), Enterococcus faecium (n = 36), Enterococcus faecalis (n = 25), and...