Table 2.

Vaccine immune response monitoring in previously infected and not previously infected cohorts of healthcare providers

	Pre	Post I	Post II
	Median (IR) BAU/mL
Previously infected subjects	36.6 (14.5–99.0)	> 2500.0	–
Not previously infected subjects	< 0.4	18.9 (4.3–58.2)	2111.0 (713.8 - > 2500.0)

Previously infected subjects = subjects infected to SARS-CoV-2

Not previously infected subjects = subjects not infected to SARS-CoV-2

Pre = anti - SARS-CoV-2 S titers before the first dose

Post I = anti - SARS-CoV-2 S titers 20 days after the first dose

Post II = anti - SARS-CoV-2 S titers 8 days after the second dose

median = median of anti - SARS-CoV-2 S titers

IR = Interquartile Range of anti - SARS-CoV-2 S titers