Well, ate a lot of them in college. But had a retired relative living in Florida die from them so they are off the menu.

Vibrio vulnificus

https://www.cdc.gov/vibrio/prevention/vibrio-and-oysters.html

If somehow you are susceptible in your old age, 1 in 5 die from vibrio infection. Organ failure and flesh eating doesnt sound so appetizing anymore.

Those with cirrhosis of the liver are highly susceptible.