African Americans can tolerate syphilis better than Caucasians.

African Americans

Citizens or residents of the United States who have total or partial ancestry from any of the native populations of Sub-Saharan Africa.

Syphilis

A sexually transmitted infection caused by the bacterium Treponema pallidum, characterized by distinct phases and potentially serious long-term complications if left untreated.

Caucasians

A term historically used to describe people of European origin, though its use and implications have evolved and are considered outdated and inaccurate for describing ethnic groups.