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Table 4 Regional distribution of B. pertussis in Alberta in sporadic, community-based and facility-based outbreak settings

From: Bordetella pertussisin sporadic and outbreak settings in Alberta, Canada, July 2004 – December 2012

 

Sporadic cases

Community-based outbreaks

Facility-based outbreaks

Geographic region*

Suspected

Confirmed (%)

No. of outbreaks*

Suspected

Confirmed (%)

No. of outbreaks*

Suspected

Confirmed (%)

Region 11

1,480

96 (6.5)

1

389

44 (11.3)

3

3

0 (0.0)

Region 2

830

37 (4.5)

1

11

0 (0.0)

1

0

NA

Region 3

2,994

171 (5.7)

0

8

1 (12.5)

1

14

12 (85.7)

Region 4

3,027

209 (6.9)

5

849

93 (11.0)

3

19

1 (5.3)

Region 5

863

44 (5.1)

4

90

12 (13.3)

4

22

7 (31.8)

Region 6

6,820

418 (6.1)

1

17

2 (11.8)

5

21

4 (19.0)

Region 7

1,965

129 (6.6)

3

35

2 (5.7)

5

15

6 (40.0)

Region 8

2,172

148 (6.8)

4

181

24 (13.3)

2

17

4 (23.5)

Region 9

1,333

171 (12.8)1

2

18

13 (72.2)

0

13

4 (30.8)

  1. *Geographic comparison was not performed for community-based and facility-based outbreaks because outbreaks initiated in a specific region usually involved residents from multiple regions because of travel.
  2. 1p < 0.001, binary logistic regression using region 1 as the reference group.