Thyroiditis after mRNA Vaccination for COVID-19

Table 1

Laboratory test results.

	Case 1	Case 2
At diagnosis
TSH (0.35–4.94 mIU/L)	<0.01	<0.01
FT4 (0.9–1.8 ng/dl)	1.8	1.71
T3 (100–200 ng/dl)	188	139
Anti-TPO (<10 IU/ml)	7	147
Anti-TG (<14 IU/ml)	Negative	1296.1
TRAB (<1.75 IU/L)	<1.10	<1.10
ESR (<20 mm/hr)	2	—
TSI antibodies	—	<0.10
CRP (<5.0 mg/L)	—	25
WBC (4.0–11.0) ×10^3/ml	—	5.3
Follow-up 4^th week
TSH	14.23	25
FT4	0.90	0.40
T3	—	—