Table 1.

Testing of pig and human sera for PCMV by Western blot analysis, in parallel PCMV infection was determined by PCR. n.t., not tested.

	Number Tested	PCR	Western Blot Analysis Using PCMV Proteins
			R1	R2	UA	UB
Human sera
Butcher and workers in the meat production industry	24	n.t.	1	3	n.t.	n.t.
Blood donors	24	n.t.	1	0	n.t.	n.t.
Pig sera
Aachen minipigs	12	2	3	12	6	6
Göttingen minipigs	11	5	2	4	4	9
Slaughterhouse pigs	12	2	4	10	12	9