Final answer:
Conjunctivitis, Tinea, Scabies, Pediculosis, and the common cold are communicable conditions that prevent cosmetologists from working to avoid spreading these diseases in a salon setting.
Step-by-step explanation:
Conjunctivitis, Tinea, Scabies, Pediculosis, and the common cold are conditions that can prevent a cosmetologist from working due to their contagious nature. These conditions are considered communicable diseases or infections which can easily spread from person to person, especially in settings where close physical contact is common, such as in a beauty salon. As such, cosmetologists are typically advised not to work when they have these conditions to prevent the spread to clients. The integumentary system, which includes the skin, hair, nails, and associated glands, is exposed to various diseases and disorders, like acne and eczema. Some skin conditions, like Tinea infections (ringworm, athlete's foot, barber's itch) have fungal origins, while others, such as scabies and pediculosis, are caused by parasitic infestations. Preventing the spread of these conditions often involves maintaining good personal hygiene and reducing direct contact with affected individuals.
The conditions mentioned in the question, such as Conjunctivitis, Tinea, Scabies, and Pediculosis, are all considered skin disorders that can prevent a cosmetologist from working. These disorders are infectious and can easily be spread from person to person, which makes it necessary for cosmetologists to refrain from working until the conditions are treated and resolved.