Table. Interim case definition for retrospective or prospective voluntary case reports of suspected severe fever with thrombocytopenia syndrome, Japan*.

Criteria
Fever >38°C
Gastrointestinal tract symptoms (e.g., nausea, vomiting, abdominal pain, diarrhea, melena)
Thrombocytopenia, <100 × 109 platelets/L
Leucopenia, <4 × 109 leukocytes/L
Elevated levels of aspartate aminotransferase, alanine aminotransferase, and lactate dehydrogenase
Absence of other causes
Death or admission to an intensive care unit because of symptoms

*All criteria required for case confirmation.