| AIDS | acquired immune deficiency syndrome |
| AMD | acid mine drainage |
| AMP | antimicrobial peptide |
| ATP | adenosine triphosphate |
| BAM | bacteriophage adherence to mucus |
| CA-MRSA | community-acquired methicillin-resistant S. aureus |
| CBER | Center for Biologics Evaluation and Research |
| CD | Crohn’s disease |
| CDC | U.S. Centers for Disease Control and Prevention |
| DOE | U.S. Department of Energy |
| DIO | diet-induced obesity |
| DNA | deoxyribonucleic acid |
| FDA | U.S. Food and Drug Administration |
| FMT | fecal microbiota transplantation |
| GE | gastroesophageal |
| GEJ | gastroesophageal junction |
| GI | gastrointestinal |
| GIO | gene-induced obesity |
| HIV | human immunodeficiency virus |
| HMO | human milk oligosaccharides |
| HMP | Human Microbiome Project |
| IBD | inflammatory bowel disease |
| iNKT | invariant natural killer T |
| IOM | Institute of Medicine |
| MAMP | microbe-associated molecular pattern |
| MIO | microbe-induced obesity |
| mRNA | messenger ribonucleic acid |
| MRSA | methicillin-resistant S. aureus |
| NASH | nonalcoholic steatohepatitis |
| NIAID | National Institute of Allergy and Infectious Diseases |
| NIH | National Institutes of Health |
| NO | nitric oxide |
| NSF | National Science Foundation |
| OPC | oropharyngeal candidiasis |
| OTU | operational taxonomic unit |
| PAMP | pathogen-associated molecular pattern |
| PAT | pulsed antibiotic treatment |
| PCoA | principal coordinate analysis |
| PCR | polymerase chain reaction |
| POP | pattern of pathogenesis |
| PRR | pattern-recognition receptor |
| rDNA | ribosomal deoxyribonucleic acid |
| RNA | ribonucleic acid |
| rRNA | ribosomal ribonucleic acid |
| RYGB | Roux-en-Y gastric bypass |
| SCFA | short-chain fatty acid |
| SIV | simian immunodeficiency virus |
| STAT | subtherapeutic antibiotic treatment |
| TMAO | trimethylamine N-oxide |
| VVC | vulvovaginal candidiasis |