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Officials Identify Rare O45:H2 Strain in Mecklenburg‑Vorpommern EHEC Outbreak

Genetic analysis identifies a rare subtype to focus source tracing.

Overview

  • Authorities report 45 infections since mid‑August with 12 cases of HUS and 15 people still hospitalized, mostly children, with no additional HUS cases added on Friday.
  • The National Reference Center determined the outbreak strain belongs to the rare O45:H2 subtype, enabling investigators to distinguish outbreak‑linked cases from unrelated background infections.
  • Children who visited the region account for several infections in other states, including six confirmed cases in Berlin and one in Brandenburg, with some patients treated outside Mecklenburg‑Vorpommern.
  • The infection source remains unknown as epidemiological interviews, food and environmental testing continue; a recent EHEC finding in a sausage sample has not been linked to the outbreak.
  • Schools and childcare facilities received hygiene guidance, and opposition leaders called for a crisis team and police support, with a special state health committee session scheduled for Thursday.