Indirect Virus Transmission via Fomites Can Counteract Lock-Down Effectiveness.

ABSTRACT: The spread of severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) has raised major health policy questions. Direct transmission via respiratory droplets seems to be the dominant route of its transmission. However, indirect transmission via shared contact of contaminated objects may also occur. The contribution of each transmission route to epidemic spread might change during lock-down scenarios. Here, we simulate viral spread of an abstract epidemic considering both routes of transmission by use of a stochastic, agent-based SEIR model. We show that efficient contact tracing (CT) at a high level of incidence can stabilize daily cases independently of the transmission route long before effects of herd immunity become relevant. CT efficacy depends on the fraction of cases that do not

SUBMITTER: Thalheim T 

PROVIDER: S-EPMC9658534 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature