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NoroSTAT Data Table

Suspected and Confirmed Norovirus Outbreaks Reported by State Health Departments in Minnesota, Ohio, Oregon, Tennessee, and Wisconsin to the National Outbreak Reporting System (NORS) by Week of Illness Onset, 2009-2015*.

WeekMinRange, 2009-122012-132013-142014-15
1-Aug21442
8-Aug02725
15-Aug04234
22-Aug03536
29-Aug13303
5-Sep12253
12-Sep12712
19-Sep13625
26-Sep15414
3-Oct13333
10-Oct16339
17-Oct16747
24-Oct171264
31-Oct6513713
7-Nov21517410
14-Nov5512916
21-Nov31620710
28-Nov715272127
5-Dec627281822
12-Dec917172630
19-Dec420261612
26-Dec1320312119
2-Jan726202716
9-Jan822321824
16-Jan1511242518
23-Jan1811341725
30-Jan1024342325
6-Feb1114172325
13-Feb1124302830
20-Feb814293239
27-Feb821293242
6-Mar117263626
13-Mar48153129
20-Mar47182925
27-Mar38243836
3-Apr62212920
10-Apr39112211
17-Apr4491614
24-Apr2861312
1-May637712
8-May2111315 
15-May24616 
22-May1464 
29-May2125 
5-Jun1229 
12-Jun3134 
19-Jun1217 
26-Jun2444 
3-Jul3433 
10-Jul14511 
17-Jul0447 
24-Jul0254 

*Incomplete outbreak data from 2009-12 was supplemented with information from state health department records.

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