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: Are anticytomegalovirus antibody titres associated with caregiving burden in younger caregivers?
Answer: These data suggest that in the absence of immunosenescence, the chronic stress of caregiving is not sufficient to compromise the immune response to persistent CMV infection. However, an indirect mechanism to poorer health in caregivers might be via adoption of disadvantageous health behaviours in response to stress. Statement of contribution What is already known on this subject? Older caregivers of spouses with dementia show a poorer immune response against latent viruses when compared to age- and sex-matched controls. Younger parental caregivers of children with developmental disabilities show a poorer antibody response to vaccination. What does this study add? The study showed no association between caregiving stress and CMV antibody titre in young caregivers. There were higher CMV antibody titres in the caregivers who engage in unhealthy behaviours.
[A]: no


[Q]: Question: Does overexpression of microRNA-155 suppress chemokine expression induced by Interleukin-13 in BEAS-2B human bronchial epithelial cells?
Answer: miR-155 specifically inhibits IL-13-induced expression of eosinophilic chemokines CCL11 and CCL26 in bronchial epithelial cells, even though the 3'-untranslated region of these genes do not contain a consensus binding site for miR-155.
[A]: yes


[Q]: Question: Does [ Sanhuangyinchi decoction pretreatment ameliorate acute hepatic failure in rats by suppressing antioxidant stress and caspase-3 expression ]?
Answer: SHYCD pretreatment can dose-dependently ameliorate AHF in rats possibly by suppressing antioxidant stress and caspase-3 expression to decrease hepatic cell apoptosis.
[A]:
yes