Microbiology A patient has an increased antibody titer to delta agent. 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 has an increased antibody titer to delta agent. You would most likely suspect ✓ Correct Answer: D. Possible hepatitis B infection