Infection and drug resistance · 2026
Severe Vibrio vulnificus Sepsis without Typical Wound Exposure in a Patient with Chronic Liver Disease and Diabetes: A Case Report.
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Cao Zanfeng, Luo Jiaying, Zhuang Haoming, Li Xintong, Ban Yuejing, Ouyang Yu, Hu Jiajian, You Pengguang, Liu Xi, Liang Qing, Zhang Zuopeng
Аннотация
BACKGROUND: Vibrio vulnificus, a Gram-negative bacillus, is frequently present in warm estuarine and coastal waters and is a notable pathogen responsible for seafood-related fatalities globally. Infection typically arises from ingesting contaminated seafood or exposure of skin wounds to tainted seawater, resulting in primary or secondary sepsis, as well as severe skin and soft tissue infections.
CASE PRESENTATION: Upon hospital admission, a 51-year-old man with chronic gastritis, long-term alcohol use, type 2 diabetes, thrombocytopenia, and active hepatitis B and C presented with acute right upper quadrant abdominal pain, high fever, and a history of consuming raw fish (sashimi) before symptom onset, suggesting a foodborne infection. Despite denial of recent seawater exposure or seafood handling, his condition rapidly deteriorated, resulting in septic shock, moderate acute respiratory distress syndrome, and necrotizing fasciitis of the left lower extremity within 72 hours. Laboratory findings revealed severe thrombocytopenia, hyperlactatemia, multiple organ dysfunction, and metabolic acidosis. Vibrio vulnificus was identified via peripheral blood metagenomic next-generation sequencing. Whole-exome sequencing incidentally detected a heterozygous missense variant in the DOCK2 gene (c.4511C>T, p. Thr1504Met), classified as a variant of uncertain significance. In silico analyses suggested a benign effect, leaving any potential link to disease severity undetermined without functional confirmation.
CONCLUSION: Severe V. vulnificus sepsis may develop through foodborne transmission, even in the absence of typical exposure to seawater or seafood handling. Disease severity in this patient was primarily influenced by chronic liver disease, alcohol abuse, and diabetes. Clinicians should watch for V. vulnificus infection in patients with these risk factors who present with septic shock or rapidly progressive soft tissue infections, regardless of exposure history.
CASE PRESENTATION: Upon hospital admission, a 51-year-old man with chronic gastritis, long-term alcohol use, type 2 diabetes, thrombocytopenia, and active hepatitis B and C presented with acute right upper quadrant abdominal pain, high fever, and a history of consuming raw fish (sashimi) before symptom onset, suggesting a foodborne infection. Despite denial of recent seawater exposure or seafood handling, his condition rapidly deteriorated, resulting in septic shock, moderate acute respiratory distress syndrome, and necrotizing fasciitis of the left lower extremity within 72 hours. Laboratory findings revealed severe thrombocytopenia, hyperlactatemia, multiple organ dysfunction, and metabolic acidosis. Vibrio vulnificus was identified via peripheral blood metagenomic next-generation sequencing. Whole-exome sequencing incidentally detected a heterozygous missense variant in the DOCK2 gene (c.4511C>T, p. Thr1504Met), classified as a variant of uncertain significance. In silico analyses suggested a benign effect, leaving any potential link to disease severity undetermined without functional confirmation.
CONCLUSION: Severe V. vulnificus sepsis may develop through foodborne transmission, even in the absence of typical exposure to seawater or seafood handling. Disease severity in this patient was primarily influenced by chronic liver disease, alcohol abuse, and diabetes. Clinicians should watch for V. vulnificus infection in patients with these risk factors who present with septic shock or rapidly progressive soft tissue infections, regardless of exposure history.