. 2002 Aug 21;89(2):97–114. doi: 10.1016/S0378-1135(02)00174-8

Table 4.

Results of immunofluorescent staining for PCV2 antigen in cryostat sections of various tissues from control and experimentally PCV2-infected pigs^a

Experimental group	Pig no.	PID^b	Tonsils	Liver	Spleen	Kidney	Lung	Bronchial lymph node	Mesenteric lymph node

PCV2	11^c	21	++	++++	++++	+++	++++	++++	++++
	12^c	21	+	+++	++++	++	++++	++++	+++
	13^c	25	++++	++++	+++	++	++++	++++	++++
	14	36	++	+	++	−	+	+++	++
	15	36	+	+	+	−	−	++	++
PCV2+immunisation	16	36	++	+	++	−	−	++	++
	17	36	+++	−	++	+	+	++	+++
	18^c	22	++++	+++	++++	++	++++	++++	++++
	19	36	++	+	+	−	−	++	++
	20	36	++	−	++	+	+	+++	++

The level of antigen detected in each tissue section was scored from a ‘+’ indicating low levels increasing to ‘++++’ indicating abundant levels of PCV2 antigen; ‘–’ no PCV2 antigen detected.

Postinoculation day.

Pig that died or was euthanized before termination of the experiment on PID 36.