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.
The creation of the Three Gorges Dam has lead to the endangerment and extinction of many plant and animals. The Three Gorges region is considered a biodiversity hotspot. It is home to over 6,400 plant species, 3,400 insect species, 300 fish species, and more than 500 terrestrial vertebrate species. The disruption of the riverâs natural flow dynamics due to blockage will affect the migratory paths of fish.