Microbiology A patient with neurological problems has an elevated cerebrospinal fluid (CSF) antibody titer to measles virus. You would most likely suspect A Fifth disease B Susceptibility to chickenpox C Possible subacute sclerosing panencephalitis (SSPE) D Possible hepatitis B infection 💡 Explanation A patient with neurological problems has an elevated cerebrospinal fluid (CSF) antibody titer to measles virus. You would most likely suspect ✓ Correct Answer: C. Possible subacute sclerosing panencephalitis (SSPE)