Search results
Results from the WOW.Com Content Network
HIV can also disseminate by direct transmission from one cell to another by a process of cell-to-cell spread. [96] [97] The hybrid spreading mechanisms of HIV contribute to the virus' ongoing replication against antiretroviral therapies. [95] [98] Two types of HIV have been characterized: HIV-1 and HIV-2. HIV-1 is the virus that was originally ...
AIDS, in particular, has a long asymptomatic period—during which time HIV (the human immunodeficiency virus, which causes AIDS) can replicate and the disease can be transmitted to others—followed by a symptomatic period, which leads rapidly to death unless treated. HIV/AIDS entered the United States from Haiti in about 1969. [123]
Diarrhea is defined by the World Health Organization as having three or more loose or liquid stools per day, or as having more stools than is normal for that person. [ 2 ] Acute diarrhea is defined as an abnormally frequent discharge of semisolid or fluid fecal matter from the bowel, lasting less than 14 days, by World Gastroenterology ...
Over-the-counter anti-diarrheal drugs, like Imodium, can offer short-term relief. But, don’t take it if you have a fever or bloody stools, and contact your doctor if you’re taking other ...
A small percentage of HIV-1 infected individuals retain high levels of CD4+ T-cells without antiretroviral therapy. However, most have detectable viral loads and will eventually progress to AIDS without treatment. These individuals are classified as HIV controllers or long-term nonprogressors (LTNP). People who maintain CD4+ T cell counts and ...
WHO Disease Staging System for HIV Infection and Disease was first produced in 1990 by the World Health Organization [1] and updated in 2007. [2] It is an approach for use in resource limited settings and is widely used in Africa and Asia and has been a useful research tool in studies of progression to symptomatic HIV disease .
AIDS-related complex (ARC) was introduced after discovery of the HIV (human immunodeficiency virus) when the medical community became aware of the inherent difficulties associated with treating patients who have an advanced case of HIV which gave rise to the term acquired immune deficiency syndrome (AIDS).
The term viral tropism refers to the cell types a virus infects. HIV can infect a variety of immune cells such as CD4 + T cells, macrophages, and microglial cells. HIV-1 entry to macrophages and CD4 + T cells is mediated through interaction of the virion envelope glycoproteins (gp120) with the CD4 molecule on the target cells' membrane and also ...