Once a person is affected by a dengue virus, the platelets can no longer âactivateâ itself. So whenever there is damage, the platelets cannot form the mesh structure and the blood flows out of the vessel. As blood flows out, so does the platelets. This causes the platelet count to fall drastically. The blood that flows out causes internal. and external bleeding and leads to a haemorrhage.
1 Today, the Aswan Dam keeps the Nile from flooding modern cities. 2  The Ancient Egyptians called the Nile the Aur, which means black and comes from the black soil. 3  The Egyptians measured the height of the annual flood using a Nilometer.
Ancient Egyptians believed that the Nile flooded every year because of Isis's tears of sorrow for her dead husband, Osiris. The three stages of the Egyptian flood cycle were Akhet, the time of the Nile flood, Peret, the sowing time, and Shemu, the time of harvest.ncient Egyptians believed that the Nile flooded every year because of Isis's tears of sorrow for her dead husband, Osiris. The three stages of the Egyptian flood cycle were Akhet, the time of the Nile flood, Peret, the sowing time, and Shemu, the time of harvest.