A group from Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan, etc. has reported stability of SARS-CoV-2 and Influenza virus on three types of postcards with different surface coating.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8590490/
The assessment of the risk of virus transmission through papers, such as postcards, is important. However, the stability of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and influenza A virus (IAV) on different types of papers is currently unknown.
In this experiment, stability of SARS-CoV-2 and IAV was evaluated on the surface of postcards with three types of coatings, plain paper (PP), inkjet paper (IP), and inkjet photo paper (IPP).
The survival times of SARS-CoV-2 and IAV were significantly shorter on IP and IPP than on PP as shown below (SARS-CoV-2). Therefore, switching from PP to IP or IPP is effective in reducing the viral transmission risks through paper.
