Mild Clinical Course of Severe Fever with Thrombocytopenia Syndrome Virus Infection in an Elderly Japanese Patient
Table 1
Clinical course of hemoglobin, leukocyte and platelet counts, AST, ALT, creatine kinase, LDH, aPTT, prothrombin time, and C-reactive protein after the onset of SFTS.
Laboratory test (reference range)
Day 4
Day 7
Day 8
Day 9
Day 10
Day 13
Hemoglobin, g/dL (11.5–15.3)
14.4
16.4
13.2
12.3
13.1
12.7
Leukocyte, ×103/μL (4–9.5)
3.0
4.9
3.9
4.2
4.2
4.4
Neutrophil, % (39–73)
NA
45
32
61
56
59
Lymphocyte, % (19–50)
NA
36
52
29
35
27
Atypical lymphocyte, % (0)
NA
15
3
0
0
0
Erythroblast, cell/100 WBC (0)
NA
1
0
0
0
0
Platelet, ×103/μL (150–400)
61
73
79
89
241
431
AST, IU/L (11–35)
157
267
192
147
86
42
ALT, IU/L (5–35)
66
122
97
89
82
56
Creatine kinase, IU/L (45–235)
155
207
127
86
52
31
LDH, IU/L (120–230)
483
577
437
356
284
206
aPTT, sec (20–35)
NA
33.8
31.3
30.5
29.3
26.9
Prothrombin time, INR (0.8–1.2)
NA
0.88
0.89
0.92
0.98
1.03
C-reactive protein, mg/dL (0–0.5)
1.10
0.23
0.15
0.26
0.29
0.04
Day 1 was onset day. NA: not available; WBC: white blood cell; AST: aspartate aminotransferase; ALT: alanine aminotransferase; LDH: lactate dehydrogenase; aPTT: activated partial prothromboplastin time; INR: international normalized ratio.
