COVID-19 disease caused by the SARS-CoV-2 virus was declared "pandemic" by the World Health Organization (WHO) in March 2020 as a new respiratory epidemic. Symptoms of this epidemic vary, but are mainly fatigue, high fever, and cough, and in more severe cases, breathing problems and severe lung damage. Although molecular diagnostics are the standard diagnostic method for COVID-19, rapid antigen testing, which is easy to use, convenient, and field-ready, has been introduced and widely used for quarantine in many developed countries, including the United States, Japan, and Europe.