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Table 2 Overall and seasonal acquisition and incidence (per 1000 person-seasons) of methicillin-resistant Staphylococcus aureus, Stenotrophomonas maltophilia, Achromobacter xylosoxidans, and Haemophilus influenzae among young U.S. children with cystic fibrosis, 2003 to 2009

From: Seasonality of acquisition of respiratory bacterial pathogens in young children with cystic fibrosis

   

Season

 

Overall

Winter

Spring

Summer

Autumn

 

Cases (n)

Incidencea

Cases (n)

Incidencea

Cases (n)

Incidencea

Cases (n)

Incidencea

Cases (n)

Incidencea

MRSA

910

16.4

238

19.5

207

15.4

195

13.5

270

17.4

S. maltophilia

1161

21.9

263

22.4

259

20.3

324

23.6

315

21.3

A. xylosoxidans

228

3.8

64

4.9

43

2.9

54

3.4

67

3.9

H. influenzae

2148

50.5

563

56.8

524

52.2

537

50.0

534

44.4

  1. MRSA, methicillin-resistant Staphylococcus aureus; S. maltophilia, Stenotrophomonas maltophilia; A. xylosoxidans, Achromobacter xylosoxidans; H. influenzae, Haemophilus influenzae
  2. a Per 1000 person-seasons