Can it be treated?

There is no specific treatment for West Nile Virus (WNV) infection. In milder cases, people experience symptoms such as fever and aches that pass on their own, although the illness can last weeks to months. In serious cases, a person may have to be hospitalized and given supportive treatment (e.g. intravenous fluids, help with breathing), along with nursing care. There is no vaccine for WNV, but the Centers for Disease Control and Prevention (CDC) is working with partners to develop one.

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1. What is West Nile Virus?
2. How is it spread?
3. Can it be treated?
4. What is the risk of getting very sick from West Nile Virus?
5. Can animals be infected?