%0 Journal Article %A Aniţa, Sebastian %A Banerjee, Malay %A Ghosh, Samiran %A Volpert, Vitaly %T Vaccination in a two-group epidemic model %D 2021 %R 10.1101/2021.01.10.21249557 %J medRxiv %P 2021.01.10.21249557 %X Epidemic progression depends on the structure of the population. We study a two-group epidemic model with the difference between the groups determined by the rate of disease transmission. The basic reproduction number, the maximal and the total number of infected individuals are characterized by the proportion between the groups. We consider different vaccination strategies and determine the outcome of the vaccination campaign depending on the distribution of vaccinated individuals between the groups.Competing Interest StatementThe authors have declared no competing interest.Funding StatementThe last author has been supported by the RUDN University Strategic Academic Leadership Program.Author DeclarationsI confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.YesThe details of the IRB/oversight body that provided approval or exemption for the research described are given below:Not requiredAll necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived.YesI understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).Yes I have followed all appropriate research reporting guidelines and uploaded the relevant EQUATOR Network research reporting checklist(s) and other pertinent material as supplementary files, if applicable.YesNo data used. %U https://www.medrxiv.org/content/medrxiv/early/2021/01/13/2021.01.10.21249557.full.pdf