Coronavirus disease 2019 (COVID-19) reinfections are now reported from many countries with different coronavirus strains. Detectable immunoglobulin G (IgG) levels are thought to impart protective immunity to reinfection in that individual. Here, we discuss a case report of a young, healthy, type 2 diabetic patient who suffered reinfection even after four times upper normal circulating IgG antibody specific to a COVID-19 spike protein. The first time was a clinical diagnosis when he self-isolated himself and was diagnosed later by COVID-19-specific symptoms with severe acute respiratory syndrome coronavirus 2 (SARS-COV-2)-specific IgG antibody titer.
All Keywords
【저자키워드】 COVID-19, Reinfection, IgG SARS-CoV-2, 【초록키워드】 IgG, Coronavirus disease 2019, coronavirus, Symptom, Case report, IgG antibody, Immunoglobulin, protective immunity, Patient, Clinical diagnosis, Diabetic, acute respiratory syndrome, circulating, coronavirus strains, country, thought, healthy, reported, diagnosed, suffered, 【제목키워드】 titer, face,
【저자키워드】 COVID-19, Reinfection, IgG SARS-CoV-2, 【초록키워드】 IgG, Coronavirus disease 2019, coronavirus, Symptom, Case report, IgG antibody, Immunoglobulin, protective immunity, Patient, Clinical diagnosis, Diabetic, acute respiratory syndrome, circulating, coronavirus strains, country, thought, healthy, reported, diagnosed, suffered, 【제목키워드】 titer, face,