Age-Structured SIR Model for the Spread of Infectious Diseases Through Indirect Contacts

In this article, we discuss an age-structured SIR model in which disease spread not only through direct person-to-person contacts, but also indirect contacts. It is evident that age plays a crucial role SARS virus infection including COVID-19 infection. We formulate our as abstract semilinear Cauchy problem appropriate Banach space to show the existence of solution and steady states. study, it assumed population demographic stationary state there no disease-free equilibrium point long transmission due contacts environment. solved numerically study effect on density infected individuals.