Estimation of the Probability of Reinfection With COVID-19 by the Susceptible-Exposed-Infectious-Removed-Undetectable-Susceptible Model
BackgroundWith the sensitivity of the polymerase chain reaction test used to detect the presence of the virus in the human host, the worldwide health community has been able to record a large number of the recovered population. ObjectiveThe aim of this study was to evaluate the probabili...
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| Format: | Article |
| Language: | English |
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JMIR Publications
2020-05-01
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| Series: | JMIR Public Health and Surveillance |
| Online Access: | http://publichealth.jmir.org/2020/2/e19097/ |
| _version_ | 1798014303038603264 |
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| author | Victor Okhuese, Alexander |
| author_facet | Victor Okhuese, Alexander |
| author_sort | Victor Okhuese, Alexander |
| collection | DOAJ |
| description | BackgroundWith the sensitivity of the polymerase chain reaction test used to detect the presence of the virus in the human host, the worldwide health community has been able to record a large number of the recovered population.
ObjectiveThe aim of this study was to evaluate the probability of reinfection in the recovered class and the model equations, which exhibits the disease-free equilibrium state for the coronavirus disease.
MethodsThe model differential equation was evaluated for the disease-free equilibrium for the case of reinfection as well as the existence and stability criteria for the disease, using the model proportions. This evaluation shows that the criteria for a local or worldwide asymptotic stability with a basic reproductive number (R0=0) were satisfied. Hence, there is a chance of no secondary reinfections from the recovered population, as the rate of incidence of the recovered population vanishes (ie, B=0).
ResultsWith a total of about 900,000 infected cases worldwide, numerical simulations for this study were carried out to complement the analytical results and investigate the effect that the implementation of quarantine and observation procedures has on the projection of further virus spread.
ConclusionsAs shown by the results, the proportion of the infected population, in the absence of a curative vaccination, will continue to grow worldwide; meanwhile, the recovery rate will continue slowly, which means that the ratio of infection rate to recovery rate will determine the death rate that is recorded. Most significant for this study is the rate of reinfection by the recovered population, which will decline to zero over time as the virus is cleared clinically from the system of the recovered class. |
| first_indexed | 2024-04-11T15:15:21Z |
| format | Article |
| id | doaj.art-d2470f729952447b9dee5f8ed8729498 |
| institution | Directory Open Access Journal |
| issn | 2369-2960 |
| language | English |
| last_indexed | 2024-04-11T15:15:21Z |
| publishDate | 2020-05-01 |
| publisher | JMIR Publications |
| record_format | Article |
| series | JMIR Public Health and Surveillance |
| spelling | doaj.art-d2470f729952447b9dee5f8ed87294982022-12-22T04:16:30ZengJMIR PublicationsJMIR Public Health and Surveillance2369-29602020-05-0162e1909710.2196/19097Estimation of the Probability of Reinfection With COVID-19 by the Susceptible-Exposed-Infectious-Removed-Undetectable-Susceptible ModelVictor Okhuese, AlexanderBackgroundWith the sensitivity of the polymerase chain reaction test used to detect the presence of the virus in the human host, the worldwide health community has been able to record a large number of the recovered population. ObjectiveThe aim of this study was to evaluate the probability of reinfection in the recovered class and the model equations, which exhibits the disease-free equilibrium state for the coronavirus disease. MethodsThe model differential equation was evaluated for the disease-free equilibrium for the case of reinfection as well as the existence and stability criteria for the disease, using the model proportions. This evaluation shows that the criteria for a local or worldwide asymptotic stability with a basic reproductive number (R0=0) were satisfied. Hence, there is a chance of no secondary reinfections from the recovered population, as the rate of incidence of the recovered population vanishes (ie, B=0). ResultsWith a total of about 900,000 infected cases worldwide, numerical simulations for this study were carried out to complement the analytical results and investigate the effect that the implementation of quarantine and observation procedures has on the projection of further virus spread. ConclusionsAs shown by the results, the proportion of the infected population, in the absence of a curative vaccination, will continue to grow worldwide; meanwhile, the recovery rate will continue slowly, which means that the ratio of infection rate to recovery rate will determine the death rate that is recorded. Most significant for this study is the rate of reinfection by the recovered population, which will decline to zero over time as the virus is cleared clinically from the system of the recovered class.http://publichealth.jmir.org/2020/2/e19097/ |
| spellingShingle | Victor Okhuese, Alexander Estimation of the Probability of Reinfection With COVID-19 by the Susceptible-Exposed-Infectious-Removed-Undetectable-Susceptible Model JMIR Public Health and Surveillance |
| title | Estimation of the Probability of Reinfection With COVID-19 by the Susceptible-Exposed-Infectious-Removed-Undetectable-Susceptible Model |
| title_full | Estimation of the Probability of Reinfection With COVID-19 by the Susceptible-Exposed-Infectious-Removed-Undetectable-Susceptible Model |
| title_fullStr | Estimation of the Probability of Reinfection With COVID-19 by the Susceptible-Exposed-Infectious-Removed-Undetectable-Susceptible Model |
| title_full_unstemmed | Estimation of the Probability of Reinfection With COVID-19 by the Susceptible-Exposed-Infectious-Removed-Undetectable-Susceptible Model |
| title_short | Estimation of the Probability of Reinfection With COVID-19 by the Susceptible-Exposed-Infectious-Removed-Undetectable-Susceptible Model |
| title_sort | estimation of the probability of reinfection with covid 19 by the susceptible exposed infectious removed undetectable susceptible model |
| url | http://publichealth.jmir.org/2020/2/e19097/ |
| work_keys_str_mv | AT victorokhuesealexander estimationoftheprobabilityofreinfectionwithcovid19bythesusceptibleexposedinfectiousremovedundetectablesusceptiblemodel |