What does the plum with syphilis mean?

Syphilis is a chronic sexually transmitted disease caused by Treponema pallidum. It can invade skin, mucosa and other tissues and organs, and its clinical manifestations are diverse, and sometimes it is asymptomatic and latent in the course of the disease. Pathogens can be transmitted to the fetus through the placenta, leading to fetal syphilis.

In the 6th century, Italian philosopher and doctor girolamo fracastoro wrote a poem called "Syphilis, or French Disease" in Latin, in which he described an Italian shepherd named "Sifelis" who was punished for offending Apollo. Therefore, people later called syphilis "Sifelis". "Westphalia" is written by Europeans and translated into Chinese as "syphilis".