
Yaws
- tropical systemic non-venereal infection caused by Treponema pallidum subspecies pertenue.
- An endemic, infectious, nonvenereal disease in humans that presents mainly in children younger than 15 years. The disease occurs primarily in warm, humid, tropical areas of Africa, Asia, South America, and Oceania, among poor rural populations where conditions of overcrowding and poor sanitation prevail. Infection with Treponema pertenue, a subspecies of Treponema pallidum, causes the disease.

Initial lesions of yaws

Multiple papillomata due to yaws and wet crab yaws

Other early skin lesions of yaws

Hyperkeratosis due to yaws

Gummata and ulcers due to yaws

Gangosa

Bone and joint lesions due to yaws

Other manifestations of yaws

Latent yaws

Yaws unspecified
- tropical systemic non-venereal infection caused by Treponema pallidum subspecies pertenue.
- An endemic, infectious, nonvenereal disease in humans that presents mainly in children younger than 15 years. The disease occurs primarily in warm, humid, tropical areas of Africa, Asia, South America, and Oceania, among poor rural populations where conditions of overcrowding and poor sanitation prevail. Infection with Treponema pertenue, a subspecies of Treponema pallidum, causes the disease.