Association Between Gut Microbiome and Dietary Determinants and Vaccine Response

This study evaluates the association between gut microbiome and dietary determinants and vaccine response. This study aims to learn if diet and the microbes (such as bacteria and viruses) found in your gut affect the body's immune response to the influenza vaccine.

Inclusion Criteria: 1. MD Anderson employees and student employees with existing MRN 2. Must be able to donate blood 3. Participants must be age 18 or older 4. Participants must receive the seasonal influenza vaccine at MD Anderson through Employee Health 5. Participants must consent to gut microbiome profiling, REDCap-based dietary screening questionnaire (Appendix A) and survey (Appendix B), and vaccine immune response testing which requires one stool sample, and two blood draws Exclusion Criteria: 1\. Participants with a contraindication to the recommended annual influenza vaccine Pregnant women may be included in this study.