. 2020 Sep 1;12(9):968. doi: 10.3390/v12090968

Table 5.

Correlation between HI antibody titers against the challenge virus (MO15) and virus titers in the lungs.

Vaccine Group	Geomean HI Antibody Titers	Mean Lung Virus Titers (log₁₀ TCID₅₀/g)
PBS-PBS-PBS	5.0	6.14
NC95-PBS-PBS	5.0	3.44
NC95-G08-G08	26.4	1.25
NC95-PA10-PA10	242.5	0.85
NC95-G08-PA10	40.0	1.82
NC95-PA10-G08	160.0	0.85

HI antibody titers were determined at the time of challenge, while virus titers were determined 3 days post challenge. Correlation between titers was determined using the Spearman correlation coefficient (r = −0.91).