The key word in your post Mr. P-hole is "prehistoric". Do ya' really think the FDA would allow sales during the non-R months if there was a true threat these days? Now, I wouldn't suggest going to Miami in August and eating the oysters you collected on your trip to the beach, but these days, Oysters served year-round come from farms with no chance of red tide contamination. Plus, you have northern farms where the water is cooler if you still wanna be a wuss about it. I gots ta' go with Arty on this one.