The overall objective of this study is to evaluate the role of gut microbiome in influenza vaccine response in immunosuppressed populations. Microbial diversity (alpha diversity) is decreased in immunosuppressed patients and might be associated with lower immunogenicity to influenza vaccine.
This study will evaluate the effect of the microorganisms in the gut on how well the flu vaccine works in people who have a weakened immune system due to inflammatory bowel disease. Participants can expect to be in the study for 1 month.