Mycology Huda Alzubaidi December 2, 2013

 Introduction  Transmission  Causes  Symptoms  Types of infection  Conclusion

 Dermatophytosis is a mycotic infection of the hair, skin, or nails.  The fungi that cause dermatophytosis are Dermatophytes.  The genera which cause this infection include: Trichophyton, Microsporum & Epidermophyton.  The most common diseases that dermatophytes cause are Tinea pideas (Athlete’s Foot) and Tinea capitis (ringworm).

 Approximately 70% of the world’s population is predicted to experience dermatophytosis during their lifetime.  Infection only occurs when skin conditions are in a warm and moist environment.  Adult males are more susceptible to Athlete’s foot while children are more likely to experience Tinea capitis.

 Tinea pedis  Fungal infection that commonly occurs on the soles of the feet and between the webs of toes.  The name was derived from common infection within athletes

TRICHOPHYTON RUBRUM TRICHOPHYTON MENTAGROPHYTES

 Poor hygiene  Walking barefoot in contaminated environments.  Wearing tight fitting shoes that are airless and prevent sweat from evaporating.

Direct contact: S kin-to-skin contact Indirect contact: Shoes Towels Nail salons Swimming pools

 Cracks and skin peeling between two toes  Soreness  Itchiness  Sweaty  Smelly feet

 Immunocompromised  Those on immunosuppresants  Organ transplant patient’s  Diabetes

Inter-digital infection. The most common type of athlete’s foot infection, Easiest type of Athlete’s foot to treat.

 Moccasin type of infection is long lasting or chronic.  Caused by T. rubum  Severe cases this type of infection may lead to crumbling or fall out of toenails.

 Caused by T. mentagrophytes.  The least common of infection.  Begins as fluid-filled blisters on the skin, between toes, on the heel, or sole of the foot.

Treatment:  Non prescription topical antifungals such as Micatin.  prescription topical & oral antifungals such as Naftin & Lamisil. Prevention:  Avoid walking barefoot.  Keep your feet dry.  Wear cotton socks.

 Microsporum canis  M. audouinii  M. distortum  M. cookei

 Ages: 3-7 years old  Daycare centers.  Nursing homes  Immunocompromised  HIV & Cancer  Organ transplant patients

 Direct contact with infected area of someone else.  Sharing contaminated combs, hats or bed clothes.  Pets such as dog & cats

 Head rash & Scalp pain  Localized redness & swelling on the scalp.  Patches become lumpy.  Hair loss & lasting scars..

 Three types:  Ectothrix infection  Endothrix infection  Favus infection

Treatment: Oral therapy can be used such as Griseofulvin. Prevention: Wash your hair regularly. No sharing personal items.

 Dermatophytosis is a fungal infection that infect the skin, hair and nails.  It is a zoonotic infection which can be transferred from animals to human.  It is more prevalent in warm climate.  The most common disease of dermatophytosis are Tinea pedis & Tinea capitis

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