Extinction (optical mineralogy)

Physics

Stochastic modelling

Pathology

Sociology

Nonlinear system

Disease

Population

Coronavirus disease 2019 (COVID-19)

Mathematics

Infectious disease (medical specialty)

Stochastic process

Biology

Markov chain

Statistical physics

Statistics

Mathematical optimization

Demography

Paleontology

Epidemic model

Basic reproduction number

Quantum mechanics

Applied mathematics

Stationary distribution

Martingale (probability theory)

Lyapunov function

Medicine

Computers in Biology and Medicine

We reformulate a stochastic epidemic model consisting of four human classes. We show that there exists a unique positive solution to the proposed mode…

Extinction and stationary distribution of a stochastic COVID-19 epidemic model with time-delay