Public health policy on coronavirus disease (COVID-19) has focused on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus and its effects on human health, while environmental factors have been largely ignored.
Considering the epidemiological triad (agent-host-environment) applicable to all diseases, researchers investigated a possible environmental factor in the COVID-19 pandemic: ambient radiofrequency radiation from wireless communication systems, including micro- waves and millimeter waves. SARS-CoV-2, the virus causing the COVID-19 pandemic, emerged in Wuhan, China, shortly after a fifth-generation wireless communications radiation system was set up (5G) citywide.