This regional site serves multiple counties. Use the dropdown below to view a specific county's data.
HIV prevalence (per 100,000)
Maryland - Somerset
Measurement Period: 2012
learn more about the color range
Rate of adolescents and adults aged 13 years and over living with HIV
Number of recorded persons living with HIV
Caveats and Limitations
Caution should be exercised when interpreting county-level data as these statistics are inclusive of institutional populations (e.g., incarcerated persons, military bases, etc.) and their inclusion may artificially inflate the actual rate of a county when an institution is housed in it.
2012 - Dimensions
Comparison of 25 Counties
|Aged 13-24 years||DSU||88.6||DSU
|Aged 25-34 years||DSU||651.4||DSU
|Aged 35-44 years||DSU||1,255.7||DSU
|Aged 45-54 years||DSU||1,700.0||DSU
|Aged 55 years and over||DSU||348.5||DSU
|Black or African American, non-Hispanic||DSU||1,252.3||1,566.3
- DSU - Data statistically unreliable.
National HIV Surveillance System (NHSS)
The HIV Surveillance System is the nation's source of timely information used to track the HIV/AIDS epidemic. [The term HIV/AIDS is used to refer to 3 categories of diagnoses collectively: (1) a diagnosis of HIV infection (not AIDS), (2) a diagnosis of HIV infection and a later diagnosis of AIDS, and (3) concurrent diagnoses of HIV infection and AIDS.] HIV/AIDS surveillance is conducted by health departments in each state or territory and the District of Columbia. Data are collected using standard confidential case reports and are reported to CDC without personal identifiers.
MethodologyThe HIV/AIDS surveillance activities employed by most reporting areas include four major reporting sources: hospitals, physicians, public and private clinics, and medical records systems (death certificates, tumor registries, etc.). Using a standard confidential case report, the health departments collect information and transmit it to CDC electronically, without personal identifiers. Estimated data on HIV infection and AIDS are adjusted using a maximum likelihood statistical procedure that accounts for the differences in reporting delays among various characteristics (demographic, vital status, etc.). HIV/AIDS surveillance data are provisional and are updated annually.