Objective:

To identify scientific evidence on the indirect transmission of SARS-CoV-2 in out-of-hospital spaces and population measures for its prevention.

Materials and methods:

A rapid review of what has been published in PubMed and MedRxiv between 12/01/2019 and 04/24/2020, on the topics: 1) the contamination and viability of SARS-CoV-2 in different inanimate surfaces; 2) products accessible at home level with disinfectant efficacy against SARS-CoV-2; 3) the cases and outbreaks of SARS-CoV-2 transmitted through surfaces.

Results:

A high proportion of the objects people infected with SARS-CoV-2 use (toilet, pots and electronic tablets) are contaminated. This virus remains viable from hours to days in paper, cardboard, cloth, glass, wood, plastic, steel and face masks. Ethanol, 2-propanol, chlorine, and soap are effective in deactivating it. There is little evidence on cases and outbreaks by indirect contact.

Conclusions:

Studies are required to determine the minimum infectious dose by autoinoculation. Appealing to the precautionary principle, we include recommendations to reduce the risk of indirect contagion.

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