system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following infection involves hair -
assistant
The correct answer is  Ans. is 'a' i.e., Trichophyton o Dermatophytes are keratinophilic fungi, living only on the superficial dead keratin. That is why they infect skin, hair and nails. In skin they infect the most superficial layer of epidermis i.e., stratum corneum. They do not penetrate living tissues. Dermatophytes cause a variety of clinical conditions, collectively known as dermatophytoses, tinea or ringworm. Dermatophytes have been classified into three genera:- Trichophyton, Microsporum, Epiderm ophyton.o Tricophytons affect - skin, hair and nailo Microsporum affect - skin and hair (nails are not involved)o Epidermophytons - skin and nail (hair not involved)