Volume 18, Number 2—February 2012
Dispatch
Invasive Pneumococcal Pneumonia and Respiratory Virus Co-infections
Table 1
IPP incidence and associated factors, 11 seasons, Atlanta, Georgia, USA*
Season | No. IPP cases | No. IPP cases/10 million population | No. influenza isolates | No. influenza isolates/100 specimens | No. RSV detections | No. RSV detections/100 specimens | Temperature, oF† | Precipitation, inches‡ | Sunshine, h‡ |
---|---|---|---|---|---|---|---|---|---|
1994–95 | 633 | 26.75 | 1,203 | 12.67 | 2,116 | 23.41 | 57.44 | 0.81 | 79.46 |
1995–96 | 643 | 26.54 | 916 | 11.76 | 2,016 | 26.25 | 52.31 | 1.31 | 79.38 |
1996–97 | 653 | 26.33 | 1,382 | 15.87 | 1,635 | 18.64 | 55.24 | 0.89 | 79.30 |
1997–98 | 673 | 25.73 | 1,876 | 19.46 | 1,682 | 16.83 | 53.09 | 1.16 | 79.78 |
1998–99 | 599 | 23.04 | 2,073 | 21.01 | 1,672 | 15.61 | 56.42 | 0.59 | 79.60 |
1999–00 | 600 | 22.57 | 1,532 | 16.29 | 878 | 22.31 | 55.53 | 0.62 | 79.51 |
2000–01 | 516 | 18.97 | 1,409 | 15.31 | 3,458 | 21.45 | 52.97 | 0.85 | 79.43 |
2001–02 | 342 | 12.34 | 2,045 | 20.44 | 2,001 | 15.70 | 56.08 | 0.66 | 79.34 |
2002–03 | 336 | 11.90 | 1,287 | 14.81 | 1,713 | 14.23 | 53.85 | 1.18 | 79.27 |
2003–04 | 360 | 12.19 | 4122 | 28.69 | 4,227 | 18.50 | 55.07 | 0.63 | 79.75 |
2004–05 | 328 | 11.25 | 3813 | 23.34 | 3,415 | 14.34 | 54.94 | 1.08 | 79.56 |
Total | 5683 | NA | 21,658 | NA | 24,813 | NA | NA | 9.78 | 874.37 |
Mean | 517 | 19.78 | 1,969 | NA | 2,256 | NA | 54.81 | 0.89 | 79.49 |
*Virus data from US Census South Atlantic Region (www.census.gov/geo/www/us_regdiv.pdf). IPP, invasive pneumococcal pneumonia; RSV, respiratory syncytial virus; NA, not applicable.
†Seasonal mean calculated from weekly means.
‡Seasonal mean calculated from weekly totals.
1Current affiliation: Columbus Technologies and Services, Inc., Atlanta, Georgia, USA.