The Food and Drug Administration (FDA) has issued a warning against the consumption of seafood, specifically bay oysters and clams, harvested in certain bays in Oregon and Washington state since late May due to a potentially paralyzing toxin, saxitoxin. This toxin, produced by algae, can cause paralytic shellfish poisoning (PSP), which can look, smell, and taste normal, making it difficult to detect. The toxin cannot be removed by cooking or freezing. At least 20 people have fallen ill from this outbreak in Oregon, leading to the closure of the state's coast for fishing and shellfish harvesting. The FDA has advised consumers to avoid shellfish from these areas and has warned retailers and restaurants in states that have distributed the contaminated shellfish to cease serving them. The FDA also highlighted that PSP symptoms, which include numbness, vomiting, and irregular heartbeat, can be treated effectively if detected early.