• Min Min, Lili Bai, Xiaobo Peng, Lei Guo, Kun Wan, and Zewu Qiu.
• Department of Gastroenterology and Hepatology, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China.
• J Emerg Med. 2021 Jun 1; 60 (6): 760-763.

BackgroundBotulinum toxin is a neurotoxin generated during the growth of Clostridium botulinum and can lead to a rare but life-threatening disease with neurologic symptoms. Relatively little is known about the many types of botulinum toxins in China. The clinical symptoms of the different types of botulism toxin-induced illnesses appear after an incubation period and vary greatly by the serotype and degree of exposure to the toxin.Case ReportWe describe 4 patients who consumed vacuum-packaged salted fish and ham and then presented with severe gastrointestinal symptoms, resulting in vomiting and one death. Blood serum and urine samples tested by the botulinum neurotoxin Endopep-MS assay were positive for botulinum toxin types A, B, and E. The patient who consumed the largest amount of fish and ham died after 36 h, and the other patients were treated with botulism antitoxin after being diagnosed with a botulinum toxin-induced illness and recovered after 1 month. These cases illustrate the importance of early diagnosis and early treatment of botulism type E, in particular, because of the risk of respiratory failure and treatment delays, which can result in increased mortality and poorer overall outcomes. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Our cases illustrate the importance of early diagnosis and especially the treatment of illnesses related to botulism type E because of the risk of respiratory failure and because treatment delays can result in increased mortality and worsened overall outcomes.Copyright © 2021 Elsevier Inc. All rights reserved.

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