Research Article

Comparison of Human-Like H1 ( 𝛿 -Cluster) Influenza A Viruses in the Swine Host

Table 1

Results of homologous HI assays using δ-cluster H1 influenza A viruses TX08, MN07, and IL05.

SerumSeroconversion
12 dpc/14 dpi19 dpc/21 dpi

TX08 H1N2
 Primary5/5 (61)5/5 (106)
 Contact5/5 (70)5/5 (80)
MN07 H1N1
 Primary5/5 (211)5/5 (211)
 Contact5/5 (279)5/5 (368)
IL05 H1N1
 Primary5/5 (211)5/5 (211)
 Contact5/5 (106)5/5 (106)

Number positive with reciprocal HI ≥ 40/total tested (geometric mean reciprocal titer against homologous antigen).