Prevention:

Children and adults should avoid contact with anyone who has encephalitis.

Controlling mosquitoes (a mosquito bite can transmit some viruses) may reduce the chance of some infections that can lead to encephalitis.

• Apply an insect repellant containing the chemical, DEET when you go outside (but never use DEET products on infants younger than 2 months).
• Remove any sources of standing water (such as old tires, cans, gutters, and wading pools).
• Wear long-sleeved shirts and pants when outside, particularly at dusk.

Vaccinate animals to prevent encephalitis caused by the rabies virus.

Human vaccinations that are available include:

• A vaccination to prevent a form of viral encephalitis that often affects people living in dorms or in the military
• Herpes zoster
• Measles