杨女士在街市购买的海鲜中意外混入了携带河鲀毒素的红斑斗蟹，险些造成中毒事故1。红斑斗蟹体内的河鲀毒素即使含量很少也足以致命，且高温烹饪无法破坏其毒性1。正直爱洁蟹等多种蟹类亦含有河鲀毒素，主要分布于日本、菲律宾、新加坡、东非以及中国的广东、海南等地1。
除了含毒蟹类，消费者购买海鲜时还需警惕其他有毒海洋生物。织纹螺中毒后会引发腹痛、恶心、呕吐、头晕等症状，严重时可导致肌肉麻痹、呼吸困难甚至死亡，目前无特效解毒剂1。蓝环章鱼的毒液毒性极强，约为氰化物的1000倍，微量毒液即足以致命1。此外，副溶血性弧菌在35℃环境下可呈指数级繁殖，6小时内即可达到致病浓度1。为确保安全，海鲜蒸煮时应保证中心温度达到100℃并持续数分钟1。
A woman's mother narrowly avoided a potentially fatal poisoning incident when a highly toxic red-spotted guard crab was accidentally mixed into seafood purchased at a local market.1 The red-spotted guard crab carries tetrodotoxin, a deadly neurotoxin present in pufferfish, and even small amounts can be lethal; high-temperature cooking cannot destroy the toxin's potency.1
Beyond this particular incident, several other marine organisms pose serious health risks to seafood consumers. The upright scavenging crab, distributed primarily in Japan, the Philippines, Singapore, East Africa, and regions of southern China including Guangdong and Hainan, also contains tetrodotoxin within its body.1 Textile cone snails can cause abdominal pain, nausea, vomiting, and dizziness when consumed; severe cases may result in muscle paralysis, respiratory failure, and death, with no known antidote currently available.1 The blue-ringed octopus produces venom approximately 1,000 times more potent than cyanide, and even minute quantities are sufficient to prove fatal.1 Additionally, Vibrio parahaemolyticus can multiply exponentially at 35 degrees Celsius, reaching pathogenic concentrations within six hours.1
To ensure safety, seafood should be steamed or boiled with the center temperature reaching 100 degrees Celsius and sustained for several minutes.1
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