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. 2024 Jul 21;25(14):7976. doi: 10.3390/ijms25147976

Table 1.

SARS-CoV-2 live-virus neutralization titers of sera and yolk samples from RBD-, S1- or whole-virus-immunized chickens and rabbits.

log2 VNT100 titer
virus used in neutralization assay
antigen species biological replicate WT Alpha Beta Delta BA.1 BA.5
RBD graphic file with name ijms-25-07976-i001.jpg #1 11.3 12 10.3 12.3 9.7 8.7
#2 10.7 11.7 9 10.3 4 4
#3 9.7 12 10.3 10.7 8 4
graphic file with name ijms-25-07976-i002.jpg yolk pool 7 11.3 8.3 9 7.3 5.7
graphic file with name ijms-25-07976-i003.jpg #1 11.7 11.3 11.7 10.7 12 7.3
#2 10.7 10.3 10.7 9 10.7 7.3
S1 graphic file with name ijms-25-07976-i004.jpg #1 4 4 4 4 4 4
#2 4 4 4 4 4 4
#3 7 8.7 4 5.7 4 4
graphic file with name ijms-25-07976-i005.jpg yolk pool 4 4.7 4 4 4 4
graphic file with name ijms-25-07976-i006.jpg #1 4 4 4 4 4 4
#2 5.3 5 5.3 4 5.7 4
whole virus graphic file with name ijms-25-07976-i007.jpg #1 9 6.3 8.3 6.3 7 5
#2 8.7 5 9.7 5 8 5
#3 9 8.7 8.7 8.7 9 7.7
graphic file with name ijms-25-07976-i008.jpg yolk pool 6 9 7 8 6 6
Log2 VNT titer of ≤4 = negative/below tested threshold
Log2 VNT titer of >4 and ≤7 = positive at a moderate level
Log2 VNT titer of >7 and ≤10 = positive at a high level
Log2 VNT titer of >10 = positive at a very high level