| Definition | Etiology | Prevalence | Source | N |
| Prevalence | General infectious influenza etiology | 91.2% | [5] | 147 |
| >78.0% | [3] | 46 | ||
| Herd prevalence of major pathogens | Cryptosporidium parvum | 41.7% | [5] | 147 |
| Rotavirus | 52.1% | |||
| Coronaviruses | 2.1% | |||
| E. coli K99 | 2.1% | |||
| Prevalence of major pathogens in diarrheic calves | Cryptosporidium parvum | 43.0% | [3] | 46 |
| Rotavirus | 46.0% | |||
| Coronaviruses | 0.0% | |||
| E. coli K99 | 0.0% |