Table 2. EHV-4 field isolates sequenced in this study.

Field isolates	Isolation site	Disease	Year of isolation	Accession number	Genome size (bp)
TH20p	Nasal swab	Respiratory disease	1962	LC063142	144,802
83-MB	Nasal swab	Respiratory disease	1983	LC075582	144,292
91c1	Aborted fetus	Abortion	1991	LC075583	143,645
01-10-1	Nasal swab	Respiratory disease	2001	LC075584	144,636
03-VR	Nasal swab	Respiratory disease	2003	LC075585	144,108
05-I-202	Nasal swab	Respiratory disease	2005	LC075586	144,655
11-10	Nasal swab	Respiratory disease	2011	LC075587	144,670
12-I-203	Aborted fetus	Abortion	2012	LC075588	143,996