一九八七年十二月二十四日中午,锦西市水泥街居民王文海一家六人午饭聚餐,于十三时三十分至十五时三十分,先后发生中毒。以皮肤呈灰兰色为主要临床症状。口、唇、指(趾)甲首先发绀,继而遍及全身,伴随呕吐、.心悸、全身无力、四肢活动不便,重症者神志不清。临床诊断为似亚硝酸盐类食物中毒。经临床应用美兰等药物对症治疗,四日后 At noon on December 24, 1987, Wang Wenhai, a resident of Cement Street, Jinxi City, had a lunch break for six people. Between 1330 and 1530, poisoning occurred successively. The skin is gray blue as the main clinical symptoms. Mouth, lips, toenails first cyanosis, and then throughout the body, accompanied by vomiting, palpitations, general weakness, extremities mobility, severe unconscious. Clinical diagnosis of nitrite-like food poisoning. Melanoma and other drugs by clinical symptomatic treatment, four days later