Table 4.

Clinical symptoms and virus isolation from respiratory organs of ferrets after inoculation of H7N3 LAIV.

Group No.	Preparation	Ferret No	Virus dose	Clinical symptoms on dpi after inoculation					Organs sampling, dpi	Virus isolation, PFU/0.1 g (log 10)
				1	2	3	4	5		Lung	Nasal turbinates
1	H7N3 LAIV	1-3	106	0	0	0	0	X	3	0	0
		4-6	106	0	0	0	0	0	5	0	0
2	H7N3 LAIV	7-9	107	0	0	0	0	X	3	0	0
		10-12	107	0	0	0	0	0	5	0	0
3	wt H7N3	13	107	0	0	0	0	X	3	0	1.7
		14	107	0	0	0	0	X	5	1.9	1.9
		15	107	0	0	0	0	X	3	0	3.7
		16-18	107	0	0	0	0	0	5	0	0
4	LAIV H1N1	19-21	107	0	0	0	0	X	3	0	0
		22-24	107	0	0	0	0	0	5	0	0

¹0 – absence of clinical symptoms, X- no data