ART significantly extends the likelihood of surviving for several decades, according to the U.S. Department of Health & Human Services. If untreated, HIV-positive persons typically live in clinical latency for around 10 years. Individuals on ART are not likely to have their HIV infection reach the AIDS stage. If the viral infection progresses to that stage, survival is estimated at around three years.
Key concepts: A hydrogen bond is formed by the interaction of a hydrogen atom that is covalently bonded to an electronegative atom (donor) with another electronegative atom (acceptor). Hydrogen bonding confers rigidity to the protein structure and specificity to intermolecular interactions.
By drawing the lewis structure (with carbon as your central atom and the four hydrogens bonded to it by a single bond) you can easily make this observation. By having this Lewis structure, the carbon atom has a stable octet and the hydrogen a douplet. Remember, hydrogen cannot have more than one bond.