TABLE 5.

Numbers of samples, numbers of L. monocytogenes-positive samples, and distribution of RAPD types for L. monocytogenes isolates from processing plant II^a

Date	Sampling site	Total no. of samples	No. of positive samples	No. of isolates with the following RAPD type as determined with HLWL85
				RAPD type 2	RAPD type 7	RAPD type 12	RAPD type 103	RAPD type 105	RAPD type 106	RAPD type 107	RAPD type 108	RAPD type 109	RAPD type 110	RAPD type 127	RAPD type x
June 1998	Raw fish	8	2												2
	Processing surfaces	20	3						1		1			1
	Processing surfaces after cleaning	0	0
	Final product	105	6						1	3
July 1998	Raw fish	1	0												2
	Processing surfaces	0	0
	Processing surfaces after cleaning	0	0
	Final product	24	6	2				3							1
August 1998	Raw fish	10	0
	Processing surfaces	30	7
	Processing surfaces after cleaning	50	0								1			2	4
	Final product	138	7	1				5			1
October 1998	Raw fish	27	4b											1
	Processing surfaces	25	1			1							1
	Processing surfaces after cleaning	0	0
	Final product	143	5		1		2
November 1998	Raw fish	41	1												2
	Processing surfaces	48	9b	1											1
	Processing surfaces after cleaning	66	0
	Final product	137	2			1		1							1
December 1998	Raw fish	21	4b		1
	Processing surfaces	8	0
	Processing surfaces after cleaning	82	2		1										1
	Final product	91	10	2	2								1
January 1999	Raw fish	13	2b										3		3
	Processing surfaces	14	1		1										1
	Processing surfaces after cleaning	16	5	2	1	1
	Final product	69	6	1	4							1
February 1999	Raw fish	8	1			1									1
	Processing surfaces	42	19	2	6	7						1			3
	Processing surfaces after cleaning	45	9	3	2	1						3
	Final product	118	7b			5
March 1999	Raw fish	27	1												1
	Processing surfaces	94	1		1										1
	Processing surfaces after cleaning	116	1			1
	Final product	75	1			1

^aData for samples taken by the processor during a 10-month period as part of routine checking. 

^bThe RAPD types of some strains were not determined.