Data for the year 2021 are preliminary. Due to the impact of the COVID-19 pandemic, data for years 2020 and 2021 should be interpreted with caution. Visit coronavirus.gov for the latest Coronavirus Disease (COVID-19) updates.
COVID-19 disruptions in HIV, diagnosis, care and reporting of deaths during 2020 have also made incidence, prevalence, and knowledge of status estimates derived from a CD4-based model, unreliable. Therefore, the HIV surveillance supplemental report Estimated HIV Incidence and Prevalence in the U.S., which provides data on estimated incidence, prevalence, and knowledge of status in the U.S., was not published by CDC this year.

Methods | AHEAD

Data Methods & Resources

Learn more about Ending the HIV Epidemic: A Plan for America by exploring the data methods.

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Citation

Data and information gathered from AHEAD can be cited in the following manner, using the American Psychological Association (APA) format.

U.S. Health and Human Services. (2019, August 18). America’s HIV Epidemic Analysis Dashboard (AHEAD). Retrieved from https://ahead.hiv.gov

Data Methods

The HIV data presented on this site are from the National HIV Surveillance System (NHSS), managed by the Centers for Disease Control and Prevention (CDC). NHSS is the primary source for monitoring HIV trends in the United States. The CDC funds and assists state and local health departments to collect the information. States and local jurisdictions, including the District of Columbia and Puerto Rico, have laws or regulations that require confidential reporting by name for adults and adolescents.

Glossary

Glossary of Terms Age and Age Groups: HIV surveillance data include adults and adolescents only (persons aged 13 years and older). These data are grouped into ten-year age groups. Age groups (rather than single year of age) are used to ensure data security and confidentiality. AIDS: “AIDS” stands for Acquired immunodeficiency syndrome. It is the most severe phase of HIV infection. People with HIV classified as stage 3 AIDS have such badly damaged immune systems that they get an increasing number of severe illnesses, called opportunistic illnesses.

CDC NCHHSTP AtlasPlus

CDC NCHHSTP AtlasPlus is an interactive tool that gives users the ability to create customized tables, maps, and charts using more than 15 years of CDC’s surveillance data on HIV, viral hepatitis, sexually transmitted diseases (STDs), and tuberculosis (TB).

IHS website

The IHS National HIV/AIDS Program (HIV/AIDS) coordinates and promotes HIV/AIDS prevention and treatment activities specific to American Indian and Alaskan Natives (AI/AN) as part of a comprehensive public health approach.