What are staphylococci?

Staphylococci refer to a type of bacteria that are characterized by their round shape and their tendency to form clusters resembling a bunch of grapes. They are Gram-positive cocci, and these bacteria are known for being pus-forming, which means they can lead to infections that produce pus, such as boils and abscesses. Staphylococcus aureus is one of the most well-known species within this group, often associated with skin infections and other serious conditions.

The other options do not accurately describe staphylococci. Infectious viruses that cause colds pertain to a different biological classification, while rod-shaped bacteria found in water refer to a distinct group of bacteria entirely. Lastly, bacteria that cause fungal infections are a misrepresentation, as fungal infections are caused by fungi, not bacteria. Thus, the accurate identification of staphylococci as pus-forming bacteria that grow in clusters is crucial for understanding their role in infections and the need for appropriate sanitation and disinfection practices in esthetic settings.