Hi . I can tell you that my wife, Kelly Mack (a contributor here), who was diagnosed at age two, 45 years ago and has been on a biologic for many years (currently Kevzara) was advised by her rheumatologist that having both vaccines at the same time was not an issue. She has done the two together the last two years with no problems. That said, there are differences between medications, the type of immune system suppression, and the potential impact on the vaccines. For example, Rituxan and methotrexate are more blanket immunosuppressants (as opposed to biologics which target specific inflammatory markers like TNF or interleuken-6 or 1). Patients on some drugs are known to have more problems developing the antibodies from vaccines. This research article notes that in relation to general guidance on vaccines for those with rheumatic diseases "Exceptions to this rule are abatacept and rituximab therapies. The immune response was found to be low even 2 weeks after discontinuation of abatacept. It is recommended to wait for vaccination at least 6 months after rituximab infusion. However, if a vaccine, such as influenza, needs to be administered within a certain time interval, vaccination should be done, although lower vaccine effectiveness is expected:" https://pmc.ncbi.nlm.nih.gov/articles/PMC5042271. You mentioned being on Orencia, which is abatacept. Given what is said in this article you may want to ask your rheumatologist for more direct guidance for your particular case. Hope this information is helpful. Best, Richard (Team Member)