Related words. 1  high technology noun. 2  push technology noun. 3  technology therapy noun. 4  appropriate technology noun. 5  information technology noun. 6  intermediate technology noun. 7  clean technology noun at cleantech.8  blind someone with science/technology phrase. 9  modern technology. 10  the frontiers of knowledge/science/technology.0% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars.
Two receptors, CD4 and a co-receptor act sequentially to trigger fusion of viral and cellular membranes and confer virus entry into cells. For HIV-1, the chemokine receptor CCR5 is the predominant co-receptor exploited for transmission and replication in vivo.
HIV attacks the bodyâs immune system, specifically the CD4 cells (T cells), which help the immune system fight off infections. Untreated, HIV reduces the number of CD4 cells (T cells) in the body, making the person more likely to get other infections or infection-related cancers. Over time, HIV can destroy so many of these cells that the body canât fight off infections and disease. These special cells help the immune system fight off infections. Untreated, HIV reduces the number of CD4 cells (T cells) in the body.