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Bacterial S.Aureus Swollen Knee Swelling Mcc Non Gonococcal Septic

Text What is the MCC cause of  bacterial non-gonococcal Septic Arthritis ?
 
S.aureus::bug
Extra

Symptoms/Signs:  

Fever

Swollen knee joint 
(Monoarticular swelling)
↓ 
S.aureus

B/L swollen knee joints 
(polyarticular swelling)
↓ 
Gonococcal 

Needle aspiration on culture yields 
WBC (x>50,000/mm3) with bacterial infiltration 

Tags: microbiology

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