 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST] 19, measles, flu). Talk to your doctor if you have been exposed to an infection or for more details. Tell your health care professional that you are using valganciclovir before having any immunizations/vaccinations. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose). To lower the chance of getting cut, bruised, or injured, use caution with sharp objects like razors and nail cutters, and avoid activities such as contact sports. Older adults may be at greater risk for kidney problems while using this drug. Women who are pregnant or who may become pregnant should not handle this medication. During pregnancy, this medication should be used only when clearly needed. It may harm an unborn baby. Discuss the risks and benefits with your doctor. Women of childbearing age should have a pregnancy test before starting this medication. To prevent pregnancy, men with female partners should always use effective barrier protection (such as latex or polyurethane condoms) during all sexual activity during treatment and for at least 90 days after stopping the medication. Women of childbearing age who are taking valganciclovir should use reliable forms of birth control (such as birth control pills and condoms) during treatment and for at least 30 </s>