Sample Size for declaring freedom from disease in a clustered population
This model estimates the sample size needed to substantiate declaring that a population has freedom from a given disease. This model explicitly accounts for clustering within the population.
Geographical Scale
- Biological cluster of interest
Required Data
- None
Suggested Data
- None
User Inputs
- Total population size estimate
- Average cluster size
- Correlation of disease status within cluster
- Diagnostic test sensitivity.
Outputs
- The number of animals that need to be tested to have high probability (95%) that disease prevalence in the overall population is at or below 1% or 2%.
