Alaska Invasive Bacterial Disease Surveillance Report Neisseria meningitidis – 2014
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Background
AIP has conducted statewide surveillance of invasive Neisseria meningitidis since 2000. Invasive N. meningitidis is a reportable condition to the State of Alaska Division of Public Health (DPH). Reports of cases of disease caused by this organism are shared between AIP and DPH.
Population
The population of the State of Alaska in 2014 was 737,354; 143,367 (19%) were Alaska Native people. Source: AK Dept. of Labor & Workforce Development population estimates.
Case Definition
An isolate of Neisseria meningitidis from a normally sterile site that has been taken from a resident of Alaska.
Methods
Participating laboratories send isolates recovered from sterile sites to the AIP laboratory in Anchorage; materials and forms for isolate shipment and data collection are provided to each laboratory by AIP. Demographic and clinical information on the cases are collected from a review of medical records. Annually, AIP asks that each laboratory review their records and provide information on any cases that may have been overlooked.
| Race | Cases n (%) |
Age Adjusted Rate* | % Male | Deaths n (%) |
|---|---|---|---|---|
| Alaska Native | 2 (67) | 1.3 | 100% | 0 (0) |
| Non-Native | 1 (33) | 0.3 | 0% | 0 (0) |
| Total | 3 | 67% | 0 (0) |
*Cases per 100,000 per percent distribution of Alaska 2010 population
| Alaska Native | Non-Native | |||
|---|---|---|---|---|
| Age (years) | No. Cases | Rate* | No. Cases | Rate* |
| <2 | 0 | 0 | 0 | 0 |
| 2-4 | 0 | 0 | 0 | 0 |
| 5-18 | 1 | 2.6 | 0 | 0 |
| 19-54 | 1 | 1.5 | 0 | 0 |
| 55-64 | 0 | 0 | 0 | 0 |
| 65+ | 0 | 0 | 1 | 1.6 |
| Total | 2 | 1.4 | 1 | 0.3 |
*Cases per 100,000 population
| No. | %* | |
|---|---|---|
| Meningitis | 2 | 67 |
| Bacteremia | 1 | 33 |
*Percent of cases
| Race | Age (yrs) | A | B | C | W | Y |
|---|---|---|---|---|---|---|
| AK Native | <2 | 0 | 0 | 0 | 0 | 0 |
| 2-18 | 0 | 0 | 1 | 0 | 0 | |
| 19-64 | 0 | 0 | 1 | 0 | 0 | |
| 65+ | 0 | 0 | 0 | 0 | 0 | |
| Non-Native | <2 | 0 | 0 | 1 | 0 | 0 |
| 2-18 | 0 | 0 | 0 | 0 | 0 | |
| 19-64 | 0 | 0 | 0 | 0 | 0 | |
| 65+ | 0 | 0 | 1 | 0 | 0 |
Vaccine Preventable Disease
The quadrivalent meningococcal conjugate vaccine (MenACWY) is recommended for 11-12 year olds with a booster at age 16. No cases occurred in the age group for which vaccine is recommended in 2014.