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Table 2 Input Data on Disease and Individual Properties

From: Assessing the impact of the Lebanese National Polio Immunization Campaign using a population-based computational model

Variable Estimate Value Reference Description
Latency Period Mean, Range 2, [0.1–7] [5, 26, 30, 31] Duration before case becomes infectious
Incubation Period Mean, Range 10, [0.1–20] [5, 26, 30, 31] Duration of infectivity prior to symptoms development
Disease Duration Non-immune Mean, Range 35, [20–50] [5, 26, 30, 31] Full duration of disease from latency to resolution or death
Partially-immune Mean, Range 7, [3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20] [5, 26, 30, 31] Full duration of disease from latency to resolution or death
Household infection rate Partially-immune case Mean, Range 0.1, [0 0.5] [5, 26, 30, 31] Probability that the individual spreads the infection among household members
Non-immune Mean, Range 1, [1 1] [5, 26, 30, 31] Probability that the individual spreads the infection among household members
Paralysis among cases, non-immune Point 0.005 [5, 30, 31] Probability of paralysis in non-immune cases
Paralysis among cases, partially-immune Point 0 [5, 30, 31] Probability of paralysis in partially-immune
Symptoms among cases, non-immune Point 0.05 [5, 30, 31] Probability of developing symptoms in the non-immune cases
Symptoms among cases, partially-immune Point 0 [5, 30, 31] Probability of developing symptoms in the partially-immune cases
Contacts per day Child, within province Mean, Range 2, [1,2,3,4,5,6,7,8,9,10] *  
Adult, within province Mean, Range 2, [1,2,3,4] *  
Child, outside province Mean, Range 1, [0–3] *  
Adult, outside province Mean, Range 1, [0–3] *  
Contact distribution across population Same population Point 66.70% * Percentage of individual contacts that belong to the same population as the case
Different population Point 33.30% * Percentage of individual contacts that do not belong to the same population as the case
  1. *Estimated from the recommendations of Lebanese National Poliomyelitis Certification Committee (Dr. Bizri, Dr. Hamadeh)