This paper discusses the case of a patient with exudative bacterial pneumonia caused by Staphylococcus warneri. The patient had been abusing alcohol and nicotine for several decades, which should be considered an immunosuppressive factor. Staphylococcus warneri is part of the skin microbiome, but can also be a pathogenic agent in certain circumstances. Pleural fluid is an unusual site of isolation for the staphylococcus described. The literature contains case reports of arthritis, endocarditis, urinary tract infection or infection associated with continuous ambulatory peritoneal dialysis caused by Staphylococcus warneri. With the development of medicine, the phenomenon of immunosuppression is becoming more common, posing the threat of an increase in invasive infections caused by coagulase-negative staphylococci. In addition, an overly liberal use of antibiotics may contribute to the generation of multidrug resistance in these micro-organisms.
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