Author: Milne, George J; Baskaran, Pravin; Halder, Nilimesh; Karl, Stephan; Kelso, Joel
Title: Pandemic influenza in Papua New Guinea: a modelling study comparison with pandemic spread in a developed country Document date: 2013_3_26
ID: y01w04lc_56
Snippet: The disease infectivity parameter Inf(Ii) was set to 1 for symptomatic individuals at the peak period of infection and then to 0.5 for the rest of the infectivity period The infectiousness of asymptomatic individuals is also assumed to be 0.5 and this applies to all infected individuals after the latent period but before onset of symptoms. The infection profile of a symptomatic individual was assumed to last for 6 days as follows: a 0.5 day laten.....
Document: The disease infectivity parameter Inf(Ii) was set to 1 for symptomatic individuals at the peak period of infection and then to 0.5 for the rest of the infectivity period The infectiousness of asymptomatic individuals is also assumed to be 0.5 and this applies to all infected individuals after the latent period but before onset of symptoms. The infection profile of a symptomatic individual was assumed to last for 6 days as follows: a 0.5 day latent period (with Inf(Ii) set to 0) is followed by 1 day asymptomatic and infectious, where Inf(Ii) is set to 0.5; then 2 days at peak infectiousness (with Inf(Ii) set to 1.0); followed by 2.5 days reduced infectiousness (with Inf(Ii)set to 0.5). For an infected but asymptomatic individual the whole infectious period (of 5.5 days) is at the reduced level of infectiousness with Inf(Ii) set to 0.5. This infectivity profile is a simplification of the infectivity distribution found in a study of viral shedding 1 .
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