A twelve-year-old boy living on a farm in Maine comes home with mosquito bites. Five days
later, he starts to feel chills, headache, and fever. What is the best test to confirm your
diagnosis?
examination of local mosquitoes
Gram stain of cerebrospinal fluid
brain biopsy for Negri bodies
ELISA test for IgM antibodies
complement fixation test for IgG antibodies