This 1966 microscope photo made available by the Centers for Disease Control and Prevention shows a tissue sample with the presence of numerous, corkscrew-shaped, darkly-stained, Treponema pallidum spirochetes, the bacterium responsible for causing syphilis. The U.S. syphilis epidemic continues to worsen, according to a new government report released Tuesday, Jan. 30, 2024, that also contains...
