Which pus-forming bacteria grow in clusters like a bunch of grapes and cause abscesses, pustules, and boils?

• A. Streptococci
• B. Diplococci
• C. Staphylococci
• D. Cocci

Answer: (C)

The key clue is how the bacteria arrange themselves. When you see pus-forming bacteria that grow in grape-like clusters, that pattern points to staphylococci. Staphylococci are cocci that clump together in tight clusters, unlike streptococci, which form chains, or diplococci, which sit in pairs. These organisms commonly cause skin infections that produce pus—things like abscesses, pustules, and boils. The usual culprit in these purulent infections is Staphylococcus aureus, which is particularly associated with quicker, more inflamed lesions. In salons, this highlights why rigorous hand hygiene, proper tool disinfection, and careful management of any skin break or lesion are essential to prevent spreading these infections.