The latest Tweets from Laurene Powell (@laurenepowell). President of @EmCollective. âWhat you do speaks so loudly that I cannot hear what you say,â Ralph Waldo Emerson. Palo Alto, CA
Bacteria that are known to cause mastitis include: 1  Pseudomonas aeruginosa. 2  Staphylococcus aureus. 3  Staphylococcus epidermidis. 4  Streptococcus agalactiae. 5  Streptococcus uberis. 6  Brucella melitensis. 7  Corynebacterium bovis. 8  Mycoplasma spp.
A 20- or 22-gauge needle is then introduced sterilely into the bursa. Fluid is aspirated and sent for analysis to identify any infectious organisms or crystals present. Staphylococcus aureus is the most common pathogen in septic bursitis, accounting for more than 80% of cases. Streptococcal species (mostly group A hemolytic streptococci) account for 5-20% of cases. Other gram-positive, gram-negative, and anaerobic infections are rare.