What Are HIV and AIDS? | HIV.gov
HIV is a virus spread through certain body fluids that attacks the body’s immune system, specifically the CD4 cells, often called T cells. Over time, HIV can destroy so many of these cells that the body can’t fight off infections and disease.
AIDS | Definition, Diagnosis, Treatment, & Facts ...
AIDS, byname and acronym of acquired immunodeficiency syndrome, transmissible disease of the immune system caused by the human immunodeficiency virus ().HIV is a lentivirus (literally meaning “slow virus”; a member of the retrovirus family) that slowly attacks and destroys the immune system, the body’s defense against infection, leaving an individual vulnerable to a variety of other ...
Guidelines and Recommendations | HIV/AIDS | CDC
The Division of HIV/AIDS Prevention (DHAP) within the National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP) has been at the forefront in developing guidelines on HIV prevention and care with significant national and international impact on public health care practice.
CD4 Count, HIV, and AIDS: Test and Results, What They Mean
The CD4 count is a test that measures how strong your immune system is. Find out how it helps your doctor make HIV and AIDS treatment decisions.
HIV/AIDS - Symptoms, Treatment, and More
HIV/AIDS. HIV remains a serious retrovirus, but treatment options have greatly improved. Educate yourself about the risks, symptoms, and therapies available today.
AIDS - definition of AIDS by The Free Dictionary
AIDS (ādz) n. A severe immunological disorder caused by the retrovirus HIV, resulting in a defect in cell-mediated immunity that is manifested by increased susceptibility to opportunistic infections and to certain rare cancers, especially Kaposi's sarcoma. It is transmitted primarily by exposure to infected body fluids, especially blood and semen. [a ...
Aids | Definition of Aids by Merriam-Webster
AIDS definition is - a disease of the human immune system that is characterized cytologically especially by reduction in the numbers of CD4-bearing helper T cells to 20 percent or less of normal thereby rendering the subject highly vulnerable to life-threatening conditions (such as Pneumocystis carinii pneumonia) and to some (such as Kaposi's ...
HIV/AIDS - National Library of Medicine - PubMed Health
AIDS is a collection of symptoms known as acquired immunodeficiency syndrome. It is caused by infection with the human immunodeficiency virus (HIV).. PubMed Health Glossary (Source: NIH - National Human Genome Research Institute)