I saw this news today. This reefer claims that he nearly killed his entire family messing around with xenia species in his reef tank. Fake news? I hope so! I have handled tons of xenia of several different species and don't ever recall getting sick.
https://apple.news/A_k09UuO1TJmHiH-43MVHtg
https://apple.news/A_k09UuO1TJmHiH-43MVHtg