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Two types of HIV have been characterized: HIV-1 and HIV-2. HIV-1 is the virus that was initially discovered and termed both lymphadenopathy associated virus (LAV) and human T-lymphotropic virus 3 (HTLV-III). HIV-1 is more virulent and more infective than HIV-2, [20] and is the cause of the majority of HIV infections globally. The lower ...
HIV is the cause of the spectrum of disease known as HIV/AIDS. HIV is a retrovirus that primarily infects components of the human immune system such as CD4 + T cells, macrophages and dendritic cells. It directly and indirectly destroys CD4 + T cells. [88] HIV is a member of the genus Lentivirus, [89] part of the family Retroviridae. [90]
Another cause is the breakdown of the immune surveillance system of the mucosal barrier caused by the depletion of mucosal CD4 + T cells during the acute phase of disease. [ 7 ] This results in the systemic exposure of the immune system to microbial components of the gut’s normal flora, which in a healthy person is kept in check by the ...
Contracting HIV can lead to the development of AIDS or stage 3 HIV, which causes serious damage to the immune system. [medical citation needed] While this virus is the underlying cause of AIDS, [3] not all HIV-positive individuals have AIDS, as HIV can remain in a latent state for many years.
HIV is a major cause of cardiomyopathy (problems with the heart muscle that reduce the efficiency with which the heart pumps blood). The most common type of HIV induced cardiomyopathy is dilated cardiomyopathy also known as eccentric ventricular hypertrophy which leads to impaired contraction of the ventricles due to volume overload.
HIV testing is an essential role in reducing HIV infection within communities as it can lead to prevention and treatment of HIV infections but also helps with early diagnosis of HIV. [9] Educating young people in a community with the knowledge of HIV prevention will be able to help decrease the prevalence within the community.
In some cases, diarrhea may be a side effect of several drugs used to treat HIV, or it may simply accompany HIV infection, particularly during primary HIV infection. It may also be a side effect of antibiotics used to treat bacterial causes of diarrhea (common for Clostridioides difficile). In the later stages of HIV infection, diarrhea is ...
The World Health Organization (WHO) issued consultative recommendations regarding nutrient requirements in HIV/AIDS. [6] A generally healthy diet was promoted. For HIV-infected adults, the WHO recommended micronutrient intake comes from a good diet at RDA levels; higher intake of vitamin A, zinc, and iron can produce adverse effects in HIV positive adults, and these were not recommended unless ...