[Capsule formation in Staphylococcus aureus of hospital origin].

The authors elaborated suitable conditions for cultivation of freshly isolated Staph. aureus, which offered a possibility of detection among them of a high percentage (75.2) of capsular cultures. It was shown that when grown in serum semifluid agar capsular staphylococci formed diffuse colonies of three different types. No correlation between the presence of the capsule, on the one hand, and the absence of the flocculus-forming factor and resistance to the type bacteriophage, on the other hand, was revealed in the Staph. aureus strains.