Homosexual men and transsexual women were singled out as the main perpetrators of the pandemic. This was due to the high incidence of the disease in these groups, added to the sexual freedom they had enjoyed since the late 1960s. Inesem business school advanced course in clinical trials management more information due to ignorance and fear, the alarms went off and discrimination spread almost as fast as the pandemic itself. Structure of the hiv virus.
Why can it with our immune system? To date, all treatments had focused on combating the appearance of aids , since the development of a preventive vaccine was extremely complicated due to the characteristics of the virus. The virus consists of fax number list two identical single-stranded rna strands that encode both regulatory and structural proteins. This genome is protected by a protein envelope surrounded in turn by a lipid membrane. Virus infection is mediated by glycoproteins , made up of two subunits ( gp41 and gp120 ), inserted into the outer membrane like spikes .
The gp120 subunit binds to specific receptors on cells of the human immune system, after which the lipid envelope of the virus fuses with the cell membrane. Ultimately the viral rna is released into the cytoplasm of the host cell. The viral reverse transcriptase generates a dna copy from the virus rna, which will be integrated into the cellular genome by the integrase enzyme. If the cell is activated by some external stimulus, such as a bacterial infection, transcription will begin.of the viral genome and thus to the production of new virions .