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. Author manuscript; available in PMC: 2020 May 5.
Published in final edited form as: Annu Rev Public Health. 2020 Jan 7;41:141–157. doi: 10.1146/annurev-publhealth-040218-043954

Table 1.

Input parameters for externality model

Description Variable Value
Excess dollar cost per FR human Campylobacter infection C $1,961 (50)
Number of human Campylobacter infections administered FQ D 94,462 (11)
Fraction of human Campylobacter infections with FR xb 18% (5)
Fraction of human Campylobacter infections attributable to chickens Y 54% (5, 11)
Fraction of FR Campylobacter isolates in retail chickens xa 24% (11)
Active enrofloxacin applied to chickens ma 6,786 kg (39, 41, 52)

Note: Parameters specific to Campylobacter infections, fluoroquinolone resistance (FR), and fluoroquinolone (FQ) use in broiler chickens are extracted from US reports and scientific manuscripts.