Hepatitis C virus (HCV) infection may be associated with neurocognitive deficits. The Hemophilia Growth and Development Study enrolled HIV-infected and HIV-uninfected patients and a group of nonhemophiliac siblings. After controlling for multiple factors, HCV monoinfection was not associated with deficits in adaptive behavior, intelligence, or attention/concentration.
Primary human immunodeficiency virus type 1 (HIV-1) infection represents the initial stage of disease that immediately follows viral entry into the body. Primary infection is frequently accompanied by an acute retroviral syndrome with associated high levels of plasma HIV-1 RNA and the development of host immune responses. The identification of subjects during this period requires a high index of suspicion and an understanding of how to make the diagnosis, as standard HIV-1 antibody tests can initially be negative. Identifying these people provides a unique opportunity for early counseling to reduce further transmission, facilitates entry into care, and allows for further study of the immunopathogenesis of disease and the potential role of early antiretroviral therapy.
Primary HIV-1 infection represents the time when the virus is first disseminating throughout the body and induces host immune responses. Diagnosing this stage of disease requires an understanding of who is at risk, the clinical manifestations of primary infection, and how the diagnosis is made. Identifying these individuals allows for counseling to prevent further transmission to others and the potential benefits associated with early antiretroviral therapy. Moreover, studying these individuals provides important insight into the biology of HIV-1 transmission and immunopathogenesis.
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