We consider that an individual goes through different phases of infection/disease, which is represented by a SEIR-like state machine.
A susceptible individual (S) can become infected, given a time-dependent infection probability λ( t ). This probability depends on the transmission potential of the virus and the social contact behaviour, which due to contact reduction policies is time-dependent. When infected, the individual becomes exposed ( E ). Once exposed ( E ), an individual goes through an incubation time of ε days, after which the individual becomes infectious prior to symptom development ( I p ). A pre-symptomatic infected individual ( I p ) will either become asymptomatic ( I a ), symptomatic with symptoms ( I s ),... Mehr ...
Verfasser: | |
---|---|
Dokumenttyp: | Image |
Erscheinungsdatum: | 2021 |
Schlagwörter: | Medicine / Neuroscience / Biotechnology / Sociology / Infectious Diseases / Biological Sciences not elsewhere classified / Mathematical Sciences not elsewhere classified / control SARS-CoV -2 epidemics / PCR test pool / health care systems / SARS-CoV -2 epidemics / testing approach / hand pool isolation / Belgian COVID -19 epidemic / STRIDE / control COVID -19 epidemics Outbreaks / contact reductions |
Sprache: | unknown |
Permalink: | https://search.fid-benelux.de/Record/base-26525404 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://doi.org/10.1371/journal.pcbi.1008688.g001 |
A susceptible individual (S) can become infected, given a time-dependent infection probability λ( t ). This probability depends on the transmission potential of the virus and the social contact behaviour, which due to contact reduction policies is time-dependent. When infected, the individual becomes exposed ( E ). Once exposed ( E ), an individual goes through an incubation time of ε days, after which the individual becomes infectious prior to symptom development ( I p ). A pre-symptomatic infected individual ( I p ) will either become asymptomatic ( I a ), symptomatic with symptoms ( I s ), after a period of ρ days. When asymptomatic ( I a ) the individual will remain infectious for ζ days after which he/she recovers ( R ). When severely symptomatic, the individual will be hospitalized with an age-dependent probability ϕ ( a ) or recover without the need for hospitalisation.