From: Dynamic of swine influenza virus infection in weaned piglets in five enzootically infected herds in Germany, a cohort study
Subtype
Proportion (%)
H1avN1
39.8
H1avN2
4.6
H1pdmN2
11.0
H1huN2
0.9
H1avNx
2.3
H1pdmNx
HxN1
3.2
HxN2
HxNx
34.3