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Staphylococcus
Staphylococcus is a genus of Gram-positive, spherical bacteria that typically form clusters resembling grapes when viewed under a microscope. These organisms are facultative anaerobes, meaning they can grow in both the presence and absence of oxygen. They are commonly found on the skin and mucous membranes of humans and animals. Among more than 30 known species, Staphylococcus aureus is the most clinically significant, known for causing a wide range of infections—from minor skin infections such as boils and impetigo to more severe conditions like pneumonia, endocarditis, osteomyelitis, and toxic shock syndrome. S. aureus is also notorious for its ability to develop resistance to antibiotics, with Methicillin-Resistant Staphylococcus aureus (MRSA) being a significant public health concern. Other less virulent species like Staphylococcus epidermidis are part of the normal flora but can cause opportunistic infections, especially in immunocompromised individuals or those with implanted medical devices.

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This content is intended for educational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any questions regarding a medical condition.