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.
Plot contours of 
versus the average days to isolation 
and average days from exposure to quarantine during (A) latency (
), (B) pre-symptomatic infection (
); Plot contours of 
versus mean period from exposure to quarantine during pre-symptomatic infection 
and (C) during latency 
, (D) hygiene precaution rate 
. All other parameter values are as shown in Table S1.
