Extended Genetic Diversity of Bovine Viral Diarrhea Virus and Frequency of Genotypes and Subtypes in Cattle in Italy between 1995 and 2013

Table 2

Sequence similarity (%) of pairwise distances within herds with ≥2 animals/sequences belonging to the same BVDV-1 subtypes.

Sequence similarity (%)	BVDV-1 subtype	Herd identification	Sequences in each herd (𝑛)	Temporal range of collection (months)	Herd production system*
100	1b	RG7	2	2	nd
100	1b	BG23	2	12^a	D
100	1b	PD3	2	12^a	nd
100	1b	CO2	2	1^b	D
100	1b	CN29	2	1^b	nd
100	1b	AT3	2	1^b	B
100	1b	CN8	2	1	B
100	1b	TO3	2	1^b	D
100	1b	TO17	3	13	M
100	1d	CN20	2	1^b	B
100	1e	RG2	2	8	nd
100	1e	CR22	2	1^b	D
100	1e	AL2	2	1^b	M
100	1e	CN24	2	6	D
100	1e	TO8	5	1^b	D
100	1e	TO14	8	12	B
100	1e	TO19	7	1^b	D
100	1f	CN2	3	14	M
100	1h	NO1	2	1	D
99.4–100	1e	VI7	4	12^a	nd
99.4	1b	RG6	2	1^b	nd
99.4	1b	TO23	2	3	D
99.4	1d	CN19	2	1^b	D
99.4	1f	AT2	2	1^b	B
98.8–100	1b	LO2	4	3	D
98.8–100	1f	CN1	7	14	D
98.8	1f	CN5	2	2	D
98.2–100	1b	RG4	4	2	nd
98.2	1b	RM1	2	12^a	D
98.2	1b	TR1	2	12^a	B
97.1	1b	CR13	2	12^a	D
96.5	1b	RM2	2	12^a	D
94.7–100	1b	LC1	5	129	D
93.6–100	1e	CN16	3	10	B
93–100	1b	RG3	3	3	nd
90.1	1e	CN17	2	13	D
88.9–100	1e	TO12	7	19	M

∗D: dairy herd, B: beef herd, M: mixed farm, and nd: not determined.
^aData available only for year of sample collection.
^bSamples collected on the same day.