A Parent Asks the Nurse to Explain What Causes Encephalitis

A parent asks the nurse to explain what causes encephalitis, because a child in the neighborhood has come down with it. Which of the following answers by the nurse would be most accurate?

A) "It is caused by a specific type of fly often found in and near horse barns."
B) "Mosquito bites are the usual cause and call for the neighborhood to request spraying and draining of stagnant water sources."
C) "After the neonatal period it is usually caused by a virus, most commonly herpes type I, herpes simplex, but can be caused by other organisms."
D) "Cat scratch fever has become one of the major causes of encephalitis, so be sure your child does not play with any of the neighborhood cats."