Comparison of the Infectivity and Transmission of Contemporary Canine and Equine H3N8 Influenza Viruses in Dogs

Table 2

Nasal shedding of the influenza virus M gene detected on real time RT-PCR and hemagglutination inhibition assay titers to Eq/CO and Ca/WY isolates 12 days after virus inoculation or introduction to inoculated dogs.

Dog ID	Group	Inoculated or sentinel	Highest influenza virus M gene copies (day)	Eq/CO titer	Ca/WY titer
XQV	Ca/WY	Inoculated	296 (day 6)	1 : 512	1 : 256
QZV	Ca/WY	Inoculated	5.74 × 10^4 (day 7)	1 : 8192	1 : 2048
WOV	Ca/WY	Inoculated	1.74 × 10^6 (day 6)	1 : 1024	1 : 256
OUV	Ca/WY	Inoculated	8.44 × 10^4 (day 4)	1 : 2048	1 : 1024
WBV	Ca/WY	Sentinel	0	0	0
SZV	Ca/WY	Sentinel	0	1 : 4096	1 : 2048
KKV	Ca/WY	Sentinel	0	1 : 4096	1 : 2048
LXU	Eq/CO	Inoculated	2.77 × 10^5 (day 3)	1 : 512	1 : 256
DFS	Eq/CO	Inoculated	6.56 × 10^5 (day 2)	1 : 1024	1 : 256
VVS	Eq/CO	Inoculated	6.59 × 10^5 (day 2)	1 : 512	1 : 256
EZS	Eq/CO	Inoculated	1.44 × 10^5 (day 3)	0	0
DDS	Eq/CO	Inoculated	2.16 × 10^4 (day 2)	1 : 256	1 : 64
SHU	Eq/CO	Sentinel	0	0	0
EGS	Eq/CO	Sentinel	0	0	0
ALS	Eq/CO	Sentinel	0	0	0