Quantifying criteria to assess risk of emerging pathogens.

*Point estimates x were first scaled (x′) between 0 (best possible option) and 1 (worst possible option). C1, C6 and C7 are naturally bounded between 0 and 1; for C2, C4 and C5 a worst possible option of the prevalence of 100,000 per 100,000 was used. For C3, a worst possible option of 1,000 M€ was used. Best possible options of 0 were replaced by 0.0000001. Subsequently, transformed scores were calculated as X = 1−log(x′)/log(x′ref), where x′ref is the scaled score for the best possible option.