| • | organism – Treponema pertenue |
| • | primary lesion = “Mother yaw” - a papule that ulcerates and becomes granulomatous |
| • | secondary lesions called , “Daughter yaws” are smaller versions of the primary lesions |
| • | late non-contagious stage – months to years after primary infection, gummata develop in the skin and bones |
Non-venereal treponemal infections
| • | spread by direct contact |
| • | predominantly a disease of underprivileged children |
| • | both diagnosed clinically and by reactive serologic tests for syphilis |
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