. 2016 Jun 8;226:20–39. doi: 10.1016/j.virusres.2016.05.023

Table 2.

PEDV neutralizing antibody titers determined by fluorescent focus virus neutralization assay^a.

Antiserum to PEDV strain and ID number^a	Virus strain^a
	PEDV PC22A, highly virulent	PEDV S INDEL Iowa106	PEDV S 197DEL PC177	PEDV CV777, classic^b
Anti-PEDV PC22A like-
PE125 ^d^,^e	1024^c	1024	1024	64
PE276 ^d^,^e	256	256	256	64

Anti-PEDV S INDEL Iowa106
PV109 ^g^,^f	256	256	256	256
PV151 ^g^,^f	16	64	64	16

Anti-PEDV S 197DEL PC177
PE312 ^d^,^f	16	16	16	16
PE342 ^d^,^f	256	256	256	256

Anti-PEDV CV777
PC13 ^g^,^f^,^b	64	64	64	1024
PC14 ^g^,^f^,^b	512	512	512	512

Anti-TGEV Miller
S409 ^d^,^e	<4	<4	<4	<4
M20 ^d^,^e	<4	<4	<4	<4

Anti-TGEV Purdue
S411 ^d^,^e	<4	<4	<4	<4
M2 ^d^,^e	<4	<4	<4	<4
RR441 ^d^,^f	<4	<4	<4	<4

Negative gnotobiotic (Gn) pig sera (PE71 and HC10078) and mock-inoculated Vero and swine testis (ST) cells were used as negative controls. Data were expressed as the median of sample titrated in triplicates using 4-fold serial dilutions. Detailed materials, methods and data analysis were published in Lin et al. (2015), Journal of Virology 89:3332-3342.

Virus strain and antisera were provided by Dr. Hans Nauwynck (Faculty of Veterinary Medicine, Ghent University, Belgium).

Boldface values represent homologous titers for each PEDV or TGEV strain.

Pig antiserum obtained from gnotobiotic pig.

Hyperimmune antiserum.

Convalescent antiserum.

Pig antiserum obtained from conventional pig.