Table 2. Clinical parameters for 22 patients with confirmed severe fever with thrombocytopenia syndrome, Shandong Province, China, 2011.

Clinical parameter	No. (%) patients
Sign or symptom
Fever	22 (100)
Gastrointestinal	20 (91)
Myalgia	12 (55)
Lymphadenopathy	10 (45)
Chills	9 (41)
Headache	7 (32)
Flank pain	7 (32)
Laboratory test*
Thrombocytopenia	21 (100)
Leukopenia	20 (95)

*Blood samples were obtained from 21 patients.