Did the Mona Lisa have syphilis?

Lisa del Giocondo, the model for Leonardo’s painting, was recorded buying snail water – then considered a cure for the STD. It could be the secret to a painting haunted by the spectre of deathWhat is the Mona Lisa’s secret? She smiles so enigmatically under the all-but-invisible transparent silk veil that covers her hair, turning her brown eyes as if she has just seen someone come into her field of vision. The fascination and fame of this portrait, begun by Leonardo da Vinci in