Table 3.
CAHFS-Tulare 4-year (2008–2011) summary of enteric pathogens, production type, and age (mean and range) from 2311 necropsied calves less than 35-days old with diarrhea
| Pathogen | Positive (%) | Mean Age (Days) | Age Range (Days) |
|---|---|---|---|
| Cryptosporidium sp | 37.2 | 13.0 | 3–33 |
| Coronavirus | 30.5 | 10.4 | 1–30 |
| Rotavirus | 26.6 | 10.5 | 1–32 |
| Salmonella spp: | 15.7 | — | — |
| Salmonella group D1 (S dublin) | 5.8 | 17.1 | 2–30 |
| Salmonella group C2 (S newport) | 4.2 | 8.7 | 1–30 |
| Salmonella group B (S typhimurium) | 2.7 | 8.1 | 1–30 |
| Salmonella group E | 2.3 | 12.6 | 2–21 |
| Salmonella C1 and not grouped | 0.7 | — | — |
| Attaching and effacing E coli | 10.5 | 12.0 | 1–31 |
| K99 E coli | 4.5 | 2.3 | 1–7 |
| Bovine viral diarrhea virus | 1.3 | 16.1 | 2–30 |
| Production type | % | — | — |
| Calf ranch | 62 | — | — |
| Dairy | 33 | — | — |
| Beef | 2 | — | — |
| Not reported/Other | 3 | — | — |