Patient's question:
Sure, here is the translation of the content you provided:```
No
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Doctor's answer:
Hello, it is mainly caused by infection. Ganciclovir has a preventive effect on the spread of CMV. If combined with high-titer anti-CMV immunoglobulin, it can reduce the mortality rate of CMV pneumonia complications in bone marrow transplantation. If CMV infection is resistant to ganciclovir, sodium phosphonoformate can be used. Although it can persistently reduce the spread of CMV, its effect is worse than the former. Foreign countries have developed live CMV vaccines, which can induce antibody production.