Trends in the SARS-CoV-2 Nucleocapsid antibody prevalence among health checkup participants

Abstract

The infection caused by the new coronavirus (SARS-CoV-2) (COVID-19) has long been suggested to have many asymptomatic infections (including mild symptoms), and the infection continues. It has also been pointed out as a contributing factor. Although there have been reports on seroepidemiological studies using local residents and donated blood specimens, there are few reports on changes in the natural infection antibody prevalence rate or its relationship with lifestyle, which is thought to be due to subclinical infection in health check-ups. This study targeted 44,493 patients who underwent a SARS-CoV-2-N (Nucleocapsid) antibody test during the period from July 2020 to October 2023, based on their age and gender. , SARS-CoV-2-N antibody test results were analyzed in three periods according to the predominant period of the variant strain. Additionally, since this infection is mainly transmitted through droplets, we also gained some knowledge regarding its relationship with drinking habits.