From: Partial direct contact transmission in ferrets of a mallard H7N3 influenza virus with typical avian-like receptor specificity
Virus infection dose (TCID50)
No. with positive titer in lung/total no.
(Log10TCID50/lung ± SD)
5 × 105
3/3 (5.6 ± 0.4)
5 × 104
3/3 (5.2 ± 0.3)
5 × 103
3/3 (4.5 ± 0.4)
500
3/3 (3.7 ± 0.6)
50
0/3