Surgical Case Reports

Table 1 Changes in neutralizing antibodies against SARS-CoV-2

From: Successful treatment with steroid pulse therapy for a COVID-19 case with progressive respiratory failure during treatment for pleural metastasis of breast cancer

Date collected	C-pass^*	IgG (N antibody)^**	Decision	IgGII (S antibody)^***	Decision
Day 0	32.8%	0.07 Index	–	2.5 AU/ml	–
Day 1	31.9%	0.11 Index	–	0.8 AU/ml	–
Day 150	96.7%	6.78 Index	+	8072.3 AU/ml	+

^* < 30% negative, ≥ 30% positive; ^** < 1.0 negative, ≥ 1.0 positive; ^*** < 50AU/ml negative, ≥ 50AU ml positive

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