A 65-year-old man develops pneumonia. The organisms isolated from the sputum are aram-positive cocci that are alpha hemolytic on blood agar and sensitive to optochin. Which structure of the causal agent provides protection against phagocytosis:

An18 year old student is X diagnosed as having Bacterial endocardititis 10 days afterwisdom tooth extraction He has a congenital heart disease(ventricular septal defect VSD)that has been under control. Which the most likely organism causing the infection?

what was the most likely causal agent: ⬆️

Which bacterial antigen is responsible for Attachment & interferes with hostimmune response leading to heart valve damage?⬆️

Young female with Atrial Septal Defect(ASD) diagnosed with Bacterial endocardititis a week after wisdom tooth extraction

An old man with a history of benign prostatic hypertrophy and a urinary Catheter. after2 sets of positive blood cultures. Biochemical tests revealed catalase (-ve),hydrolyse Esculin. bile and Vancomycin resistance.