منابع مشابه
Primary Streptococcus viridans pneumonia.
We describe three cases of acute uncomplicated bacterial pneumonia due to viridans streptococci in previously healthy adults, which were indistinguishable from those caused by other well-known respiratory pathogens. On arrival, all of these patients were treated with IV aqueous penicillin based on Gram stain of sputum which showed predominant Gram-positive cocci in pairs and chains. These speci...
متن کاملThe Localization of Streptococcus Viridans
The results of our experiments do not substantiate in full the theory of the power of selective action of Streptococcus viridans. A few strains showed a remarkable constancy in location and type of lesion, but these strains were greatly in the minority. The location of the lesions in animals seemed to bear no relation to the origin of the organism or to the lesions produced by it in the patient...
متن کاملThe Formation of Methemoglobin by Streptococcus Viridans
Cultures of Streptococcus viridans when brought into contact with red blood corpuscles have the power of transforming oxyhemoglobin into methemoglobin. The reaction occurs only in the presence of living streptococci when they are able to carry on their metabolic activities. The intensity of the reaction runs roughly parallel with the period of growth and multiplication of the bacteria and gradu...
متن کاملa study of streptococcus viridans in the maxillofacial region
statement of problem: streptococcus viridans is one of the most important micro-organisms in the establishment of infections leading to dental caries and heart valve damages. therefore the diagnosis and prevention of these infections is critical in health care. purpose: the aim of this in-vivo study was to determine the prevalence of viridans streptococci in abscesses occurring in the maxillofa...
متن کاملRole of the vegetation in experimental Streptococcus viridans endocarditis.
This study examines the role of the vegetation in catheter-induced experimental endocarditis in predisposing to bacterial colonization of cardiac valves and in influencing the course of the disease and response to penicillin therapy. Platelet-fibrin vegetations developed at areas of valvular trauma and were colonized when Streptococcus viridans were injected intravenously. Pretreatment with war...
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ژورنال
عنوان ژورنال: Journal of the American Medical Association
سال: 1919
ISSN: 0002-9955
DOI: 10.1001/jama.1919.02610140050023