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.
May 19, 1910: Halleyâs Comet Brushes Earth With Its Tail. 1910: Earth passes through the tail of Halleyâs comet. The anticipation of its arrival creates quite a stir. In some circles, the cometâs unusually close approach is seen as a sign of impending doom, a notion the down-market press does little to dispel. The comet was named for British astronomer Edmond Halley, the first to determine its orbit and accurately predict its return to the Earthâs night sky.