ABCs Report: Streptococcus pneumoniae, 2009

December 6, 2010: Content on this page kept for historical reasons.

Active Bacterial Core Surveillance (ABCs): Emerging Infections Program Network

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ABCs Areas

California (San Francisco County and children < 5 years in Alameda and Contra Costa counties); Colorado (5 county Denver area); Connecticut; Georgia (20 county Atlanta area); Maryland (6 county Baltimore area); Minnesota; New Mexico; New York (15 county Rochester and Albany areas and children <5 years in Erie county); Oregon (3 county Portland area); Tennessee (11 urban counties)

ABCs Population

The surveillance areas represent 29,206,528 persons.
Source: National Center for Health Statistics bridged—race vintage 2009 postcensal file

ABCs Case Definition

Invasive pneumococcal disease: isolation of Streptococcus pneumoniae from normally sterile site in resident of a surveillance area in 2009.

ABCs Methodology

ABCs personnel routinely contacted all microbiology laboratories serving acute care hospitals in their area to identify cases. Standardized case report forms that include information on demographic characteristics, clinical syndrome, and outcome of illness were completed for each identified case. Pneumococcal isolates were collected and sent to reference laboratories for susceptibility testing using CLSI methods and serotyping. Regular laboratory audits assessed completeness of active surveillance and detected additional cases.

Rates of invasive pneumococcal disease were calculated using population estimates for 2009. For national estimates, race- and age-specific rates of disease were applied from the aggregate surveillance area to the age and racial distribution of the 2009 U.S. population. Cases with unknown race were distributed by area based on reported race distribution for known cases within the eight age categories..

Reported ABCs Profiles

Reported ABCs Profiles
Race No. (Rate*)
White 2,905 (12.8)
Black 998 (21.6)
Other 263 (14.4)

Unknown race (n=665) distributed amongst known

* Cases per 100,000 population for ABCs areas

Reported ABCs Profiles by age
Age (years) Cases
No. (Rate*)
Deaths
No. (Rate*)
<1 165 (37.1) 4 (0.90)
1 144 (32.1) 1 (0.22)
2-4 182 (13.6) 1 (0.07)
5-17 176 (3.5) 4 (0.08)
18-34 291 (4.2) 14 (0.20)
35-49 753 (11.8) 52 (0.82)
50-64 1,138 (21.2) 139 (2.59)
≥ 65 1,317 (38.7) 223 (6.56)
Total 4,166 (14.3) 438 (1.50)

*Cases per 100,000 population for ABCs areas

Reported ABCs Profiles by syndrome
Syndrome No. (%*)
Meningitis 201 (4.8)
Bacteremia without focus 801 (19.2)
Pneumonia with bacteremia 2,932 (70.4)

*Percent of cases

Reported ABCs Profiles by antibiotic susceptibility
Antibiotic Susceptibility S*
%
I
%
R
%
Penicillin 89.8 5.2 5.0
Cefotaxime 91.9 6.2 1.9
Erythromycin 74.9 0.21 24.9
TMP/Sulfa 77.0 7.3 15.7
Tetracycline 85.2 0.16 14.6
Levofloxacin 99.7 0.0 0.35
Vancomycin 100.0 0.0 0.0

Based on reference lab testing of 3,743 isolates

* Susceptible; Intermediate; Resistant based on year 2009 CLSI definitions

National Estimates of Invasive Disease

Cases: 44,000 (14.3/100,000)
Deaths: 5,000 (1.6/100,000)

Healthy People 2010 Update

Objective: Decrease the incidence of invasive pneumococcal infections to 46 per 100,000 persons less than 5 years of age and to 42 per 100,000 persons aged 65 and older.

Reported ABCs Profiles by objective
Age (year) 2010 Objective 2009 Rate*
< 5 46/100,000 21.1/100,000
≥ 65 42/100,000 38.7/100,000

*Cases per 100,000 U.S. population < 5 years or ≥ 65 years

Citation

Centers for Disease Control and Prevention. 2010. Active Bacterial Core Surveillance Report, Emerging Infections Program Network, Streptococcus pneumoniae, 2009.

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Page last reviewed: December 6, 2010 (archived document)