| Title | Description | Host | Host Type | Outcomes |
|---|---|---|---|---|
| Ceftiofur Use | Ceftiofur-treated group (treated with ceftiofur + other therapeutic antimicrobials), vs nonantimicrobial-treated group (cows that never received therapeutic antimicrobial treatment). Ceftiofur administered as either ceftiofur crystalline-free acid (Excede | Cattle | Beef Cows | 5 |
| Ceftiofur Use | Cows treated with ceftiofur. Samples were cultured on erythromycin-selective media. (Averaged across Birth Cohorts) | Cattle | Beef Cows | 1 |