Ключевые слова: athletes foot, dermatophytes, disease, elderly, feet, filamentous fungi, foot, fungal disease, fungal infection, fungal nail infection, fungus, healthy, illness, infection, infections, itch, itching, men, morbid, mutation, nail, nail fungus, nails, old, old man, one, onychomycosis, patch, senior, sick, skin disease, skin infections, skin patches, toe, toenail, toenails, unhealthy,