This article explains the threat behind the West Nile Virus. At this point, Many students know of West Nile but rarely know much about it. It helps to give them a small, but broad background about the virus itself.
According to my state's Science standards, students are to be able to differentiate between viruses which affect the nervous system and all other which do not. This article has helped my students remember that West Nile does in fact, affect the nervous system.