change efficacy from directly inputted parameter to inferred from changes in ACH

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#136 0 comentarios 0 reacciones 1 asignado Ver en GitHub

@cwhittaker1000 ya está trabajando en esto.

Desde el 15/8/2025.

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Descripción

high priority

At the moment, efficacy is a pre-specified parameter that is assumed to be the same in all locations of a particular setting type, irrespective of features of that setting.

It's likely that efficacy will vary as a function of the baseline ventilation rate (measured in air changes per hour (ACH) of a setting). We have some sense of this, as variation in ACH between settings is used to derive their relative riskiness in the force of infection term. We should more explicitly include ACH considerations when it comes to efficacy.

Practically, what this looks like would be defining something like an "average" efficacy and then having variation in that efficacy be a function of ACH. Or we could get even more granular with our representation, and have each setting have some detailed ventilation-related and UVC-related characteristics that are combined together mathematically to derive efficacy.

See here for sketch of approximately what we could do: https://github.com/mrc-ide/helios/commit/eac6624f6d51d6a90b735aaecaebb7cd84d4a044

Lenguaje dominante
R
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8
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4
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3 d 18 h
PR fusionados (30 d)
3

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