Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Q: Question: Do serum IgG antibodies to human herpesvirus-6 ( HHV-6 ) predict the progression of HIV disease to AIDS . Italian Seroconversion Study group?
Answer: The presence of high levels of HHV-6 antibodies does not seem to predict the clinical or immunologic progression of HIV disease.
A:
no