Table 3.

Number of outbreaks by category of supporting evidence, North East England, 2012–2014

	2012	2013	2014	Total 2012–2014
No. of outbreaks	12 (100%)	9 (100%)	25 (100%)	46 (100%)
Analytical study	4 (33%)	1 (11%)	3 (12%)	8 (17%)
Positive, significant association with a specific food item	2 (17%)	0	3 (12%)	5 (11%)
Food isolates	0	0	4 (16%)	4 (9%)
Matching molecular profile for food and faecal isolates	0	0	2 (8%)	2 (4%)
Environmental Health team visit	12 (100%)	9 (100%)	21 (84%)	42 (91%)
Specific concerns about temperature control	7 (58%)	4 (44%)	9 (36%)	20 (43%)