Maraviroc is an entry inhibitor. Specifically, maraviroc is a negative allosteric modulator of the CCR5 receptor, which is found on the surface of certain human cells. The chemokine receptor CCR5 is an essential co-receptor for most HIV strains and necessary for the entry process of the virus into the host cell.
January 14, 1742. Greenwich, England. Edmond Halley, Edmond also spelled Edmund (born Nov. 8, 1656, Haggerston, Shoreditch, near Londonâdied Jan. 14, 1742, Greenwich, near London) English astronomer and mathematician who was the first to calculate the orbit of a comet later named after him.
In 1910, the Earth was due to pass through the tail of Halley's Comet, sparking a public panic that apocalypse was coming. Photograph: Nasa. In case you haven't heard, the world ends tomorrow. Friday 21 December 2012 is the date that the Maya Long Count Calendar reads thirteen b'aktun.