A cluster of five cases of ocular syphilis in women with a common male sex partner was identified in Michigan, suggesting that an unidentified Treponema pallidum strain might have been a risk factor for developing systemic manifestations of syphilis.
https://www.cdc.gov/mmwr/volumes/72/wr/mm7247a1.htm
https://www.cdc.gov/mmwr/volumes/72/wr/mm7247a1.htm
Being told you're delusional does not necessarily mean you're mental.