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ABCs Report: Neisseria meningitidis, 2014

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May 20, 2016: Content on this page kept for historical reasons.

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

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Surveillance Note

Missing race (n=5) data were multiply imputed using sequential regression imputation methods.

ABCs Areas

California (3 county San Francisco Bay area); Colorado (5 county Denver area); Connecticut; Georgia; Maryland; Minnesota; New Mexico; New York (15 county Rochester and Albany areas); Oregon; Tennessee (20 counties)

ABCs Population

The surveillance areas represent 43,528,246 persons.

Source: National Center for Health Statistics bridged-race vintage 2014 postcensal file

ABCs Case Definition

Meningococcal disease: isolation of Neisseria meningitidis from normally sterile site in a resident of a surveillance area in 2014.

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. Serogrouping of meningococcal isolates was done at CDC and state laboratories. Regular laboratory audits assessed completeness of active surveillance and detected additional cases.

All rates of meningococcal disease were calculated using population estimates for 2014 from the bridged-race vintage 2014 postcensal file. For national estimates of cases and deaths, race- and age-specific rates of disease were applied from the aggregate surveillance area to the age and racial distribution of the 2014 U.S. population for 49 states (excluding Oregon due to an outbreak of serogroup B disease). The Oregon reported cases were then added to obtain the national estimates. Cases with missing data, excluding ethnicity, were multiply imputed using sequential regression imputation methods.

Reported ABCs Profiles

Race No. (Rate*)
White 52 (0.16)
Black 13 (0.17)
Other 3 (0.09)
Total 68 (0.16)

* Per 100,000 population for ABCs areas

Syndrome Cases
No. (%*)
Deaths
No. (Rate)
Meningitis 34 (50.0) 2 (5.9)
Bacteremia without focus 13 (19.1) 4 (30.8)

* Percent of cases
Per 100 cases with known outcome

Age (years) Serogroup B
No. (Rate*)
Serogroup C
No. (Rate*)
Serogroup Y
No. (Rate*)
Serogroup Other
No. (Rate*)
< 1 5 (1.03) 1 (0.21) 0 (0.00) 2 (0.41)
1 1 (0.21) 2 (0.41) 0 (0.00) 0 (0.00)
2-4 0 (0.00) 2 (0.14) 0 (0.00) 0 (0.00)
5-17 2 (0.03) 1 (0.01) 0 (0.00) 0 (0.00)
18-34 4 (0.04) 3 (0.03) 0 (0.00) 3 (0.03)
35-49 2 (0.03) 1 (0.01) 1 (0.01) 5 (0.06)
50-64 0 (0.00) 4 (0.05) 1 (0.01) 5 (0.06)
65-74 1 (0.03) 0 (0.00) 1 (0.03) 0 (0.00)
75-84 0 (0.00) 0 (0.00) 1 (0.06) 3 (0.19)
≥ 85 0 (0.00) 0 (0.00) 1 (0.14) 1 (0.14)
Total 15 (0.04) 14 (0.04) 5 (0.01) 19 (0.05)

* Per 100,000 population for ABCs areas excluding Oregon
Unknown serogroup (n=9) distributed amongst known. All rates exclude Oregon. Rates including Oregon are serogroup B 0.04, serogroup C 0.05, serogroup Y 0.02, and serogroup Other 0.04 per 100,000 population for ABCs areas
Other includes serogroup W and nongroupables

Rates of Meningococcal Disease in Adolescents and Young Adults

Age (years) Overall Serogroups
No. (Rate*)
C/Y/W Serogroups
No. (Rate*)
11-17 2 (0.06) 1 (0.03)
18-22 4 (0.15) 0 (0.00)

* Per 100,000 population for ABCs areas excluding Oregon
All rates exclude Oregon. Rates including Oregon are, for 11-17 year olds, overall serogroups 0.05 and serogroup C/Y/W 0.03; for 18-22 year olds, overall serogroups 0.20 and serogroup C/Y/W 0.00 per 100,000 population for ABCs areas

National Estimates for Disease¥

Cases: 450 (0.14/100,000)
Deaths: 70 (0.02/100,000)

¥ In 2014, 426 cases of meningococcal disease (all case statuses) were reported to the National Notifiable Disease Surveillance System (incidence 0.13/100,000 population)

Healthy People 2020 Update

Objective: Reduce the incidence of meningococcal disease to 0.3 per 100,000 population.

2020 Objective 2014 Rate*
0.3/100,000 0.14/100,000

* Per 100,000 U.S. population

Citation

Centers for Disease Control and Prevention. 2014.  Active Bacterial Core Surveillance Report, Emerging Infections Program Network,  Neisseria meningitidis, 2014.

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