Are mobile phones part of the chain of transmission of SARSCoV- 2 in hospital settings?

• Published in: Revista do Instituto de Medicina Tropical de São Paulo Vol. 63; pp. 1 - 4
• Main Authors: Espinoza, Evelyn Patricia Sánchez, Cortes, Marina Farrel, Noguera, Saidy Vasconez, de Paula, Anderson Vicente, Guimarães, Thais, Boas, Lucy Santos Villas, Park, Marcelo, da Silva, Cristina Carvalho, Morales, Ingra, Neto, Lauro Vieira Perdigão, Tozetto-Mendoza, Tania Regina, Boszczowski, Icaro, Sabino, Ester Cerdeira, Mendes-Correa, Maria Cássia, Levin, Anna Sara, Costa, Silvia Figueiredo
• Format: Journal Article
• Language: English
• Published: São Paulo Instituto de Medicina Tropical de Sao Paulo 01.01.2021
• Subjects: Cellular telephones; Coronaviruses; COVID-19; Disease control; Disease transmission; Hospitals; Hygiene; Intensive care; Medical personnel; Medical supplies; Pandemics; Patients; Questionnaires; Severe acute respiratory syndrome coronavirus 2
• ISSN: 0036-4665; 1678-9946
• DOI: 10.1590/S1678-9946202163074

Mobile phones (MPs) have become an important work tool around the world including in hospitals. We evaluated whether SARS-CoV-2 can remain on the surface of MPs of first-line healthcare workers (HCW) and also the knowledge of HCWs about SARS-CoV-2 cross-transmission and conceptions on the virus survival on the MPs of HCWs. A crosssectional study was conducted in the COVID-19 Intensive Care Unit of a teaching hospital. An educational campaign was carried out on cross-transmission of SARS-CoV-2, and its permanence in fomites, in addition to the proper use and disinfection of MPs. Herewith an electronic questionnaire was applied including queried conceptions about hand hygiene and care with MP before and after the pandemic. The MPs were swabbed with a nylon FLOQ Swab™, in an attempt to increase the recovery of SARS-CoV-2. All MP swab samples were subjected to SARS-CoV-2 RT-PCR; RT-PCR positive samples were subjected to viral culture in Vero cells (ATCC® CCL-81™). Fifty-one MPs were swabbed and a questionnaire on hand hygiene and the use and disinfection of MP was applied after an educational campaign. Most HCWs increased adherence to hand hygiene and MP disinfection during the pandemic. Fifty-one MP swabs were collected and two were positive by RT-PCR (4%), with Cycle threshold (Ct ) values of 34-36, however, the cultures of these samples were negative. Although most HCWs believed in the importance of cross-transmission and increased adherence to hand hygiene and disinfection of MP during the pandemic, SARS-CoV-2 RNA was detected in MPs. Our results suggest the need for a universal policy in infection control guidelines on how to care for electronic devices in hospital settings.