does staphylococcus aureus have a capsule
Capsule-Negative Staphylococcus aureus Induces Chronic Experimental Mastitis in Mice Effect of capsule production on S. aureus virulence in the murine mastitis model. The ordinate represents the log number of CFU of Reynolds (CP â), Reynolds (CP5), and Reynolds (CP8) recovered from the mammary glands at different times after intramammary inoculation with 10 5 (A), 5 Ã 10 5 (B), or 10 6 (C) CFU/gland.taphylococcus aureus capsular polysaccharides (CP) have been shown to enhance staphylococcal virulence in numerous animal models of infection. Although serotype 5 CP (CP5) and CP8 predominate among S. aureus isolates from humans, most staphylococcal isolates from bovines with mastitis in Argentina are capsule negative.