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Table 1 Parameters appearing in the two-patch SI model and the four-patch cofactor model.

From: Treating cofactors can reverse the expansion of a primary disease epidemic

two-patch and four-patch cofactor:

μ

disease-free death rate

α

disease-related death rate

ν

per capita birth rate

β

disease acquisition contact rate

ϵ

disease-free fraction of offspring from infected mothers

four-patch cofactor only:

ζ

cofactor acquisition contact rate

γ

cofactor recovery rate

δ 1

cofactor induced increase in susceptibility

δ 2

cofactor induced increase in transmission (eg. via increased pathogen concentration)

λ 1

rate adjustment for cofactor acquisition only from SZ contact

λ 2

1 - λ 1