Background: The effluents generated by the hospital activities and which are rejected into themunicipal sewerage system without any prior treatment, present a chemical, biological physicalrisk for public environmental health. They cause degradation of aquatic ecosystem, favorthe propagation antibiotic resistant germs. Objective: aim this study is to carry out physicochemicaland bacteriological ...

Specific binding of the 125I-labeled human S protein (vitronectin) which has been shown to be identical with serum-spreading factor, was observed with group A, C, and G streptococci as well as with Staphylococcus aureus and Escherichia coli. The specific binding of S protein to group A, C, and G streptococci was high, whereas the binding to S. aureus and E. coli cultures was moderate. In contra...

in the recent years, herbal oral hygiene products have gained increasing attention. the aim of this study was to assess the effects of three types of mastic gums on the level of mutans streptococci, lactobacilli and ph of the saliva.forty-two students in the age range of 20-30 years were divided into three parallel groups; each of them separately used pure mastic gum, xylitol mastic gum and pro...

background and objectives: the most prevalent and worldwide oral disease is dental caries that affects a significant pro- portion of the world population. there are some classical approaches for control, prevention and treatment of this pathologic condition; however, the results are still not completely successful. therefore new methods are needed for better management of this important challen...

abiotrophia defectiva was previously known as a member of the nutritionally variant streptococcus (nvs). this microorganism is a member of the normal flora of mouth, urogenital and intestinal tracts. it causes various infections such as bacteriemia, brain abscess, septic arthritis and rarely infective endocarditis. only < 1% of all cases of endocarditis are caused by a. defectiva. a 23 year old...

Distribution and Antibiotic Resistance of Streptococci Enterococci Isolated from Dental Caries Healthy People