Molecular Characterization of Newcastle Disease Virus from Backyard Poultry Farms and Live Bird Markets in Kenya

Table 2

Newcastle disease virus detection by the molecular assay in backyard poultry farms (BPFs) and live bird markets (LBMs) in different regions of Kenya.

Factor/variable	Poultry farms				Markets
	Number of samples (N)	Number of NDV-positive samples (n)	Proportion of positive samples (%)	value	Number of samples (N)	Number of NDV-positive samples (n)	Proportion of positive samples (%)	value
Region
L. Victoria Basin	360	21	5.8 (2.0–10.4)	0.01	99	6	6.1 (2.4–14.3)	0.003
Western Highlands	433	8	1.9 (1.1–8.2)	0.257	137	16	11.7 (6.1–19.1)	0.04
Coast	431	4	0.9 (0.4–2.5)	Ref.	80	4	5.0 (1.7–15.8)	0.004
Eastern	—	—	—	—	64	4	6.3 (2.1–16.9)	0.01
Nairobi metropolitan	—	—	—	—	102	22	21.6 (14.7–30.6)	Ref.
Total	1224	33	2.7 (1.9–3.8)	0.001	482	52	10.8 (8.2–13.9)	—