A new study by a team of scientists defines previously unknown
properties of transmitted HIV-1, the virus that causes AIDS. The
viruses that successfully pass from a chronically infected
person to a new individual are both remarkably resistant to a
powerful initial human immune-response mechanism, and they are
blanketed in a greater amount of envelope protein that helps
them access and enter host cells. A disease in songbirds has
rapidly evolved to become more harmful to its host at least...
Researchers report that they have determined the precise
chemical structure of the HIV... Mannitol, a sugar alcohol
produced by fungi, bacteria and algae, is a common component of
sugar-free gum and candy. The sweetener is also used in the
medical field. Now a team from Tel Aviv Univ. have found that
mannitol also prevents clumps of a protein from forming in the
brain—a process that is characteristic of Parkinson's disease.
Bacteria in the gut that are under attack by antibiotics have
allies no one had anticipated, a team