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Table 2 Numbers of influenza A and B patients and their incidence by age group

From: Geodemographics profiling of influenza A and B virus infections in community neighborhoods in Japan

   2004/05 Season 2005/06 Season 2006/07 Season 2007/08 Season
Age Group
(yr)
Population
No.
No.
patients
II
(%)
No.
patients
II
(%)
No.
patients
II
(%)
No.
patients
II
(%)
Virus Type A          
   < 5 5,553 368 6.6 702 12.6 452 8.1 458 6.6
   5-9 5,857 433 7.4 772 13.2 787 13.4 794 7.4
   10-14 6,263 271 4.3 462 7.4 581 9.3 466 4.3
   15-64 73,365 560 0.8 1,348 1.8 1,441 2.0 1,117 0.8
   ≥65 21,858 54 0.2 97 0.4 103 0.5 53 0.2
   Total 112,901 1,686 1.5 3,381 3.0 3,364 3.0 2,888 1.5
Virus Type B          
   < 5 5,553 569 10.2 2 0.0 165 3.0 40 0.7
   5-9 5,857 743 12.7 3 0.1 569 9.7 70 1.2
   10-14 6,263 219 3.5 4 0.1 803 12.8 18 0.3
   15-64 73,365 1,287 1.8 16 0.0 436 0.6 45 0.1
   ≥65 21,858 142 0.6 0 0.0 11 0.1 4 0.0
   Total 112,901 2,960 2.6 25 0.0 1,984 1.8 177 0.2
  1. Population No., Number of people in the study area. No.patients, Number of patients in the study area each season.
  2. II, Influenza incidence in the study area.