| Amp | ampicillin |
| Amp_0.5 | 0.5 g/L ampicillin |
| BSL | biosafety level |
| Caz | ceftazidime |
| Caz_0.1 | 0.1 g/L ceftazidime |
| Caz_0.5 | 0.5 g/L ceftazidime |
| CFU | colony-forming unit |
| Cip | ciprofloxacin |
| Cip_0.1 | 0.1 g/L ciprofloxacin |
| Cip_0.5 | 0.5 g/L ciprofloxacin |
| CRE | carbapenem-resistant Enterobacterales |
| CTL | control group |
| DALY | disability-adjusted life years |
| ECKP | ESBL- and carbapenemase-producing Klebsiella pneumoniae |
| EBSL | extended-spectrum β-lactamase |
| FMT | fecal microbiota transplantation |
| HGT | horizontal gene transfer |
| ICU | intensive care unit |
| iNOS | Nitric oxide synthase |
| KPC | Klebsiella pneumoniae carbapenemase |
| MDR | multidrug-resistant |
| NDM | New Delhi metallo-beta-lactamase |
| OUT | operational taxonomic unit |
| PCA | principal component analysis |
| PCR | polymerase chain reaction |
| QC | quality control |
| SARS-CoV-2 | Severe acute respiratory syndrome coronavirus 2 |
| SCFA | short-chain fatty acid |
| SSU | small subunit |
| T | thymine |
| U | uracil |
| WRE | vancomycin-resistant enterococci |
| WHO | World Health Organization |