Table 1.

Number of samples analysed per year and number and percentage of positive samples as determined by the real time polymerase chain reaction and cultural methods.

	Salmonella			Listeria monocytogenes			Thermophilic Campylobacter
Year	Total analysed samples	No. of samples positive by real time PCR	No. of samples positive by ISO culture	Total analysed samples	No. of samples positive by real time PCR	No. of samples positive by ISO culture	Total analysed samples	No. of samples positive by real time PCR	No. of samples positive by ISO culture
2012	2.086	30 (1.43)	8 (0.38)	1.440	58 (4.02)	26 (1.80)	276	8 (2.89)	3 (1.08)
2013	2.208	45 (2.03)	9 (0.40)	1.517	55 (3.62)	22 (1.45)	132	7 (5.30)	4 (3.03)
2014	1.688	55 (3.25)	9 (0.53)	1.176	37 (3.14)	17 (1.44)	101	4 (3.96)	1 (0.99)

PCR, polymerase chain reaction; ISO, International Organization for Standardization. Values in parentheses are expressed as percentage.