Once novel coronavirus disease 2019 (COVID-19) emerged in Wuhan, China in December 2019 and the first case in Japan was reported the following month, telephone inquiries to the Infectious Disease Outpatient Clinic increased . During the first wave of the epidemic, before medical measures for this emerging infectious disease were in place, the Outpatient Clinic received a significant amount of inquiries, reflecting the prevailing social turmoil . During the second wave, inquiries did not increase because a proper system of medical care was in place in hospitals and communities . Therefore, in the early stages of an emerging infectious disease, relevant information needs to be quickly consolidated and it needs to be linked to measures that are appropriate to the situation.