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Communicable Disease Control

North Carolina Influenza Sentinel Surveillance Program
Final Summary Report for 2002-2003 Flu Season

May 22, 2003

I. Influenza-Like Illnesses Reported by N.C. Sentinel Sites
Week
Number		 Ending Number
ILI		 Patient
Visits		 Percent
ILI
40 10/05/2002 3 4865 0.06%
41 10/12/2002 5 5063 0.10%
42 10/19/2002 5 5764 0.08%
43 10/26/2002 30 6105 0.49%
44 11/02/2002 23 9573 0.24%
45 11/09/2002 37 9660 0.38%
46 11/16/2002 42 7958 0.52%
47 11/23/2002 15 7167 0.20%
48 11/30/2002 25 5274 0.47%
49 12/07/2002 25 7746 0.32%
50 12/14/2002 22 7113 0.30%
51 12/21/2002 20 5381 0.37%
52 12/28/2002 17 2868 0.59%
1 01/04/2003 25 5276 0.47%
2 01/11/2003 41 8605 0.47%
3 01/18/2003 47 9591 0.49%
4 01/25/2003 96 8886 1.08%
5 02/01/2003 225 10298 2.18%
6 02/08/2003 333 11547 2.88%
7 02/15/2003 291 9456 3.07%
8 02/22/2003 268 8967 2.98%
9 03/01/2003 185 9232 2.00%
10 03/08/2003 101 6828 1.47%
11 03/15/2003 25 4939 0.50%
12 03/22/2003 42 7351 0.57%
13 03/29/2003 23 6977 0.32%
14 04/05/2003 25 6357 0.39%
15 04/12/2003 18 6292 0.28%
12 04/19/2003 12 5367 0.22%
17 04/26/2003 8 5249 0.15%
18 05/03/2003 9 4962 0.18%
19 05/10/2003 7 2488 0.28%
20 05/17/2003 2 1337 0.14%

Percentage of Visits for Influenza-like Illness
Reported by Sentinel Providers
North Carolina, 2002-2003
Graph illustrating the percentage of visits for ILI


II. Influenza Virus Isolates Identified
by the State Laboratory of Public Health
During This Influenza Season
Week
Number		 Ending Total Confirmed County Virus Type No. Isolates of Same Virus
41 10/12/2002 1 Wake A/H1 1
49 12/07/2002 2 Cabarrus B 2
1 1/4/2003 2 Brunswick A/H3 1
Pitt A/H1 1
2 1/11/2003 1 Pitt B 1
3 1/18/2003 2 Pitt B 1
Wake A/H3 1
4 1/25/2003 9 Cabarrus B 2
Orange A/H1 1
Pitt A/H1 1
Pitt B 4
Robeson B 1
5 2/1/2003 12 Buncombe B 1
Durham B 1
Sampson B 1
Wake A/H1 1
Wake B 3
Watauga A/H1 3
Watauga A/H3 1
Watauga B 1
6 2/8/2003 39 Alamance A/H1 1
Buncombe B 1
Caldwell B 1
Granville B 2
Henderson B 1
New Hanover B 1
Orange A/H1 2
Orange B 4
Pitt A/H1 1
Pitt B 10
Union B 3
Wake B 9
Watauga A/H1 1
Watauga B 2
7 2/15/2003 23 Buncombe A/H1 1
Cabarrus B 2
Forsyth B 1
Granville B 1
Onslow B 1
Orange B 1
Pitt A/H1 4
Pitt B 3
Rowan B 2
Vance B 1
Wake B 3
Watauga A/H1 1
Watauga B 2
8 2/22/2003 21 Buncombe B 1
Caldwell B 1
Jackson B 1
New Hanover A/H1 1
Pasquotank B 1
Pitt A/H1 1
Pitt B 4
Wake A/H3 1
Wake B 3
Watauga A/H1 3
Watauga B 3
Wilkes B 1
9 3/1/2003 24 Buncombe B 1
Granville A/H1 1
Onslow A/H1 1
Orange A/H1 3
Orange B 11
Rowan B 1
Wake A/H1 1
Wake B 2
Watauga A/H1 1
Watauga B 1
Wilkes B 1
10 3/8/2003 6 Cabarrus B 1
Northampton A/H1 1
Union B 2
Wake B 1
Watauga B 1
11 3/15/2003 7 Cabarrus B 2
Orange A/H1 2
Orange B 3
12 3/22/2003 3 Orange A/H1 3
13 3/29/2003 3 Orange A/H1 3
17 4/26/2003 1 Watauga A/H3 1
18 5/3/2003 1 Orange A/H1 1
19 5/10/2003 2 Onslow A/H3 1
Wake A/H3 1
TOTAL ISOLATES IDENTIFIED TO DATE A/H1 41
A/H3 7
B 111
Total 159

No isolates identified weeks 14, 15, 16, and 20.

Final Weekly statistical report for 2001-2002 flu season

North Carolina Influenza Sentinel Surveillance Program




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