Surveillance Population

U.S. map highlights 10 areas participating in ABCs surveillance: entire states of Connecticut, Georgia, Maryland, Minnesota, New Mexico and Oregon as well as specific areas within California, Colorado, New York and Tennessee.

Surveillance Areas/Isolate Collection

The total population of Active Bacterial Core surveillance (ABCs) for invasive disease is approximately 44.1 million. However, most states further restrict the population for certain pathogens to ensure complete reporting. The table below summarizes the population under surveillance and isolate collection for each pathogen and state as of January 2018. Unless otherwise noted, surveillance is statewide. ABCs sites collect isolates for all cases included in surveillance areas, except where indicated (*) as different in the table below.

Print-friendly version – Surveillance Population Matrix Cdc-pdf[2 pages]

Surveillance Population Matrix, 1997–2017 Cdc-pdf[85 pages]

ABCs Isolates Sent by Surveillance Areas, 1997–2017 Cdc-pdf[5 pages]

 

Active Bacterial Core Surveillance Matrix by State and Pathogen
State Neisseria meningitidis Haemophilus influenzae group B streptococcus group A streptococcus Streptococcus pneumoniae
CA 3,653,718

(3 county Bay area)

3,653,718

(3 county Bay area)

3,653,718

(3 county Bay area)

3,653,718

(3 county Bay area)

3,653,718

(3 county Bay area)

CO 2,728,784

(5 county Denver area)

2,728,784

(5 county Denver area)

2,728,784

(5 county Denver area)

2,728,784

(5 county Denver area)

2,728,784

(5 county Denver area)

CT 3,576,452 3,576,452 3,576,452

*Isolates not collected

3,576,452 3,576,452
GA 10,310,371 10,310,371 5,612,442

(all ages, 20 county Atlanta area) and 58,553 (<1 years outside 20 county metro, *Isolates not collected)

Total: 5,670,995

5,612,442

(20 county Atlanta area)

5,612,442

(20 county Atlanta area)

MD 6,016,447 6,016,447 6,016,447 2,749,957

(6 county Baltimore area)

2,749,957

(6 county Baltimore area)

MN 5,519,952 5,519,952 5,519,952 5,519,952 5,519,952
NM 2,081,015 2,081,015 2,081,015 2,081,015 2,081,015
NY 2,176,973

(7 county Rochester area and 8 county Albany area)

2,176,973

(7 county Rochester area and 8 county Albany area)

2,176,973

(7 county Rochester area and 8 county Albany area)

*Isolates only collected for cases <90 days old

2,176,973

(7 county Rochester area and 8 county Albany area)

2,176,973

(7 county Rochester area and 8 county Albany area) and 49,987 (<5 years in Erie county)

Total: 2,226,960

OR 4,093,465 4,093,465 1,790,607

(3 county Portland area)

1,790,607

(3 county Portland area)

1,790,607

(3 county Portland area)

TN 4,033,317

(20 urban counties)

4,033,317

(20 urban counties)

4,033,317

(20 urban counties)

*Isolates not collected

4,033,317

(20 urban counties)

4,033,317

(20 urban counties)

Total 44,190,494 44,190,494 37,248,260 33,923,217 33,923,217

CDC retrieved populations from the National Center for Health Statistics bridged-race vintage 2016 postcensal file.


Top of Page

View Page In:Cdc-pdf PDF [78K]