From the age of two months to ten years, more than 90% of the cases of meningitis are caused by Hemophilus influenzae, meningococci, or pneumococci. Currently, infants can be vaccinated against H. influenza (group B) and N. pneumonia. Hemophilus meningitis is rare after the age of ten.
The Three Gorges Dam is the largest hydroelectric dam in the world. It is located in the middle of the tree gorges on the Yangtze River, the third longest in the world, in the Hubei Province of China. The project was approved by the Chinese government in 1992.
Construction on the Three Gorges Dam was completed in 2008. The dam stands 185m high and 2,309m wide, making it the world's largest hydro plant, well ahead of Brazil's 12,600MW Itaipu installation.