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Regression analysis to determine the ID50 for fecal oocyst shedding, diarrhea, and fecal oocyst shedding with diarrhea in calves experimentally challenged with C. parvum oocysts.
| Factor | SE | P-value | R2 | ID50 (oocysts) | |
|---|---|---|---|---|---|
| Shedding | |||||
| Intercept | 114 | 9.5 | <0.0001 | 0.45 | 5.8 |
| Regression coefficient | −48.8 | 22.0 | 0.07 | ||
| Diarrhea | |||||
| Intercept | 118.2 | 7.6 | <0.0001 | 0.71 | 9.7 |
| Regression coefficient | −67.4 | 17.5 | 0.009 | ||
| Shedding and diarrhea | |||||
| Intercept | 125.2 | 11.2 | <0.0001 | 0.67 | 16.6 |
| Regression coefficient | −91.8 | 26.1 | 0.01 | ||
