Viruses cause a number of diseases in eukaryotes. In humans, smallpox, the common cold, chickenpox, influenza, shingles, herpes, polio, rabies, Ebola, hanta fever, and AIDS are examples of viral diseases.Even some types of cancer -- though definitely not all -- have been linked to viruses.n humans, smallpox, the common cold, chickenpox, influenza, shingles, herpes, polio, rabies, Ebola, hanta fever, and AIDS are examples of viral diseases. Even some types of cancer -- though definitely not all -- have been linked to viruses.
Map of the fortifications. Located in Canada, the Ramparts of Quebec City are the only remaining fortified city walls in North America north of Mexico. The British began refortifying the existing walls, after they took Quebec City from the French in the Battle of the Plains of Abraham in 1759.
by James â¢ 9 Comments. Here are some facts about Hadrianâs Wall, built by the Romans in the 2nd century AD. 1  Hadrianâs Wall is located in the north of England, not far from the border with Scotland. 2  It stretches for about 73 miles, from Bowness on Solway on the west coast, to Wallsend on the east coast.y James â¢ 9 Comments. Here are some facts about Hadrianâs Wall, built by the Romans in the 2nd century AD. 1  Hadrianâs Wall is located in the north of England, not far from the border with Scotland. 2  It stretches for about 73 miles, from Bowness on Solway on the west coast, to Wallsend on the east coast.