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.
Fact Two. Halley's Comet takes 75 to 76 years to complete an orbit around the Sun. Comets travel in elliptical orbits, usually going from a great distance away from the Sun (hundreds of millions of miles) to relatively close (just a few million miles) to it.