Nineteen strains of nutritionally variant streptococci (NVS) were tested for bacteriolytic activity and for their production of and sensitivity to streptococcal bacteriocinlike inhibitory substances (BLIS). None appeared to produce BLIS. An inverse relationship was found between the sensitivity to BLIS and the production of bacteriolytic activity against Micrococcus luteus. All but one of the 1...

TOPIC: Cardiovascular Disease TYPE: Medical Student/Resident Case Reports INTRODUCTION: Abiotrophia stands for "life nutrition deficiency," indicating that the species needs supplemented media growth and survival. This bacteria requires Vitamin B6 L-cysteine to grow it is unable in regular blood agar. creates difficulty detection of this pathogen. defectiva has been shown reside oral, upper res...

A 41-year-old African male presented with worsening dyspnea and cachexia concerning for congestive heart failure. Transesophageal echocardiogram revealed a large mass attached to the aortic valve leaflet, mass attached to the flail anterior mitral valve leaflet, severe pulmonary hypertension and dilatation of the aortic root along with fistula between the right coronary aortic cusp and the righ...