Some 10% of Europeans have a mutant gene, CCR5, that protects them against HIV infection.Prevailing theory suggests that this mutation was perpetuated by the selective pressure of another disease, the bubonic plague.
Owing to this paradigm, HIV prevention theories and programs concentrate on the importance of empowering women to insist on condom use, rather than understanding whether they even believe HIV is important enough to protect against, and what their feelings about using condoms are.
Another worrying phenomenon is "sero-sorting" – when men choose partners who have the same HIV status, in theory negating the need to use a condom.
Observations on the alteration of exhausted CD4+ T cells in other viral diseases such as HCV and HIV support the theory that CD4+ T cells have important role in chronic viral infection.
The logic should explicate the notion of evidential support for all sorts of hypotheses, ranging from simple diagnostic claims (e.g., "the patient is infected with the HIV") to scientific theories about the fundamental nature of the world, like quantum mechanics or the theory of relativity.
Sexual behavioural change for HIV: Where have theories taken us?
While some studies have focused on enhanced cerebrovascular [ 26] and metabolic [ 27] risk in older HIV populations, the theories that have seemingly garnered the most attention recently have focused on the potential altered expression of HAND in older adults, which may reflect increased neocortical neuropathology or dysfunction, or even an early Alzheimer's process [ 28].
The finding that 17% of the patients had a higher viral load in CSF than in plasma supports the theory that HIV levels in CSF do not merely reflect plasma HIV levels.
This study aims to test the serial passage theory of HIV emergence and elucidate adaptive mechanisms to a new host using the newly emerged, pathogenic HIV-2F virus in an in vivo pigtail macaque (PTM) model.
And the country's president, Thabo Mbeki, was promoting the crackpot theory that HIV did not cause AIDS.
He became interested in the theory that HIV arose through poorly conducted vaccination trials in Africa in the 1950s, and felt this theory received less attention than it deserved because of entrenched interests in the medical establishment.
