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HIV is commonly transmitted via unprotected sexual activity, blood transfusions, hypodermic needles, and from mother to child. Upon acquisition of the virus, the virus replicates inside and kills T helper cells , which are required for almost all adaptive immune responses .
The human immunodeficiency virus (HIV) [8] [9] [10] is a retrovirus [11] that attacks the immune system.It is a preventable disease. [5] It can be managed with treatment and become a manageable chronic health condition. [5]
HIV testing done at modest rates could reduce HIV infections by 21%, HIV retention by 54%, and HIV mortality rates by 64%, with a cost-effectiveness ratio of $45,300 per quality-adjusted life year. However, the study concluded that the United States has led to an excess in infections, treatment costs, and deaths, even when interventions do not ...
Nucleic-acid-based tests amplify and detect one or more of several target sequences located in specific HIV genes, such as HIV-I GAG, HIV-II GAG, HIV-env, or the HIV-pol. [33] [34] Since these tests are relatively expensive, the blood is screened by first pooling some 8–24 samples and testing these together; if the pool tests positive, each ...
Condom in the shape of an AIDS ribbon Various personal lubricants. Consistent condom use reduces the risk of heterosexual HIV transmission by about 80% over the long-term. [21] Where one partner of a couple has HIV infection, consistent condom use results in rates of HIV infection for the uninfected person below 1% per year. [22]
The management of HIV/AIDS normally includes the use of multiple antiretroviral drugs as a strategy to control HIV infection. [1] There are several classes of antiretroviral agents that act on different stages of the HIV life-cycle. The use of multiple drugs that act on different viral targets is known as highly active antiretroviral therapy ...
The most updated HIV testing protocols recommend using the HIV-1 and HIV-2 antigen/antibody combination immunoassay as the initial screening test for an HIV infection. [22] This blood test assesses whether or not the mother has created antibodies , which are disease-fighting proteins of the immune system, against the HIV-1 and HIV-2 viruses.
Risky sexual behavior is the description of the activity that will increase the probability that a person engaging in sexual activity with another person infected with a sexually transmitted infection will be infected, [1] [2] [3] become unintentionally pregnant, or make a partner pregnant.