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.
File photo from 1986 Halley's comet streaks thought the sky in this image from the National Astronomy Observatories (NOAO). The annual meteor shower caused by Earth's passing through the cloud of space dust left behind by Halley's comet begins early Tuesday morning, just before dawn. The Christian Science monitor reported that Halley's comet made its last pass through Earth's orbit in 1986, and it will pass through again in 2061. Each time it passes, it leaves debris in its wake. As Earth's atmosphere collides with that debris, the pieces ignite, resulting in beautiful meteor showers.