ABCs Report: Streptococcus pneumoniae, 1997
Active Bacterial Core Surveillance (ABCs): Emerging Infections Program Network
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California (San Francisco County); Connecticut; Georgia (20 county Atlanta area); Maryland (6 county Baltimore area); Minnesota (7 county Twin Cities area); Oregon (3 county Portland area); Tennessee (5 urban counties)
The surveillance areas represent 16,073,596 persons. Source: U.S. Bureau of the Census, 1997
ABCs Case Definition
Invasive pneumococcal disease: isolation of Streptococcus pneumoniae from normally sterile site in resident of a surveillance area in 1997.
Project personnel communicated at least monthly with contacts in 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 tested for susceptibility at reference laboratories using NCCLS methods. Regular laboratory audits assess completeness of active surveillance and detect additional cases.
All rates of invasive pneumococcal disease were calculated using U.S. Bureau of the Census postcensal population estimates for 1997. For national projections of cases, race and age-specific rates of disease were applied from the aggregate surveillance area to the age and racial distribution of the 1997 U. S. population. Cases with unknown race were distributed by area based on reported race distribution for known cases within the seven age categories.
Reported ABCs Profiles
Unknown race (n=435) distributed among knowns.
* Cases per 100,000 population for ABCs areas.
*Cases per 100,000 population for ABCs areas
Centers for Disease Control and Prevention. 1998. Active Bacterial Core Surveillance Report, Emerging Infections Program Network, Streptococcus pneumoniae, 1997.
|<1||320 (142.9)||9 (4.02)|
|1||396 (178.7)||2 (0.90)|
|2-4||208 (31.0)||1 (0.15)|
|5-17||137 (4.8)||4 (0.14)|
|18-34||379 (9.3)||21 (0.52)|
|35-49||764 (18.9)||67 (1.65)|
|50-64||510 (23.5)||59 (2.72)|
|≥ 65||1,119 (61.7)||200 (11.02)|
|Total||3,833 (23.8)||363 (2.26)|
*Cases or deaths per 100,000 population for ABCs areas
|Bacteremia without focus||1,506||(39.3)|
*Percent of cases
Based on reference lab testing of 3,238 isolates.
* Susceptible; † Intermediate; ‡ Resistant
National Projections of Invasive Disease
Cases: 61,800 (23.1/100,000)
Deaths: 6,100 (2.27/100,000)
Healthy People 2010 Update
Objective: Decrease the incidence of invasive pneumococcal infections to 50 per 100,000 persons less than 5 years of age and to 46 per 100,000 persons aged 65 and older.
|Age (year)||2010 Objective||1997 Rate*|
*Projected cases per 100,000 U.S. population
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