Ideally, you should update your vaccination schedule at least 4 weeks before starting immunomodulatory therapy. If a vaccination is required during treatment, you should consider the following:
Live attenuated vaccines are contraindicated in these patients as there is a risk of contracting the disease. These include the MMR vaccine, the chickenpox vaccine and the oral antipolio virus vaccine. To administer these vaccines, a minimum of 3 months must have passed from the end of your treatment.
Inactivated vaccines (hepatitis A and B, tetanus, flu, pneumococcal vaccines, etc) can be administered safely although the immune response attained might be lower than in healthy people. Therefore, they should be administered preferably before the start of the immunosuppression to guarantee the best possible immune response