Staphylococcus genus bacterium

Staphylococcus is a **genus of Gram-positive cocci** that typically form clusters resembling grape bunches. Members are non-motile, non-spore-forming facultative anaerobes found commonly on human skin and mucous membranes. The most clinically significant species are *Staphylococcus aureus*, which can cause severe infections such as wound infections, sepsis, pneumonia, food poisoning, toxic shock syndrome and more; *S. epidermidis*, an opportunistic pathogen especially relevant in immunocompromised patients or those with indwelling devices; and *S. saprophyticus*, associated with urinary tract infections. The term "Staphylococcus genus bacteria" refers to an entire group containing over fifty recognized species rather than a single molecular target or protein—thus it is **not considered a therapeutic target** like receptors or enzymes would be.[1][2][3] Instead, individual proteins within these bacteria may serve as drug targets. Some staphylococci produce toxins contributing to disease severity. A major public health concern is the emergence of antibiotic-resistant strains such as methicillin-resistant *S. aureus* (**MRSA**) and vancomycin-resistant *S. aureus* (**VRSA**), which complicate treatment options.[4] Diagnosis relies on culture characteristics and biochemical tests including coagulase activity.[5] Treatment depends on antibiotic susceptibility profiles but may involve penicillins/cephalosporins unless resistance dictates alternatives like vancomycin or linezolid.[6] Because "Staphylococcus genus bacteria" refers to an entire bacterial group—not a single molecule—it does **not fit standard definitions for drug targets**, making this entry incorrect if used where only molecular targets are appropriate. > “Assignment of a strain to the genus Staphylococcus requires it to be a Gram-positive coccus that forms clusters... All species grow in the presence of bile salts.” [1] > > “There are currently 53 recognised species... The staphylococci most frequently associated with human infection are S. aureus, S. epidermidis and S.saprophyticus.” [2] > > “Of significance to humans are various strains... While S.epidermidis is a mild pathogen...strains of S.aureus are major agents...” [4]

Other names

StaphylococcusStaphylococciStaph bacteriaGenus Staphylococcus

Not directly applicable at the genus level; for drugs targeting staphylococci in general: - Inhibition of cell wall synthesis (β-lactams like penicillins/cephalosporins/vancomycin) - Inhibition of protein synthesis (linezolid)[4][6]