This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacterial Infection of Skin, Subject name: Skin
Hot tub folliculitis is caused by: 
Select and explain. 
A. Pseudomonas aeruginosa, B. Pityrosporumovale, C. Aeromonashydrophila, D. Vibriovulnificans
A: Pseudomonas aeruginosa
Answer: A: Pseudomonas aeruginosa 
Explanation: Ans: a (Pseudomonas aeruginosa)Pseudomonas aeruginosa is an aerobic gram negative rod.It causes:ParonychiaPseudomonas otitis externaSwimming pool folliculitis Echthyma gangrenosum Treatment is ciprofloxacin