An acute viral infection and inflammation of the brain itself, but can develop to a chronic infection.
Responsible for causing cold sores / Herpes simplex, mumps, measles, chickenpox
Young people are more susceptible to this
5 main viruses spread by mosquitoes: West Nile, Eastern equine, Western equine, La Crosse, St. Louis
CNS symptoms include: severe confusion, irritability, unsteady walking, drowsiness, photphobia