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Table 2 Beta-Poisson response model and parameters used for quantitative microbial risk assessment

From: Quantitative microbial risk assessment for waterborne pathogens in a wastewater treatment plant and its receiving surface water body

Microorganism Parameters Dose-response model References
Escherichia coli β = 2.473, α = 0.395 P (inf) = 1 – (1 + N/β)-α [16, 56]
n = 52 P(n) = 1 – (1 – Pinf) n [16]
  1. Key: P (inf) Probability of infection; P(n) annual probability of infection; N dosage (number of microbes ingested); n sum of exposures that occurred