Fig. 3From: Long-term immune responses in patients with confirmed novel coronavirus disease-2019: a 9-month prospective cohort study in Shanghai, ChinaSeroconversion and duration of IgM and IgG antibodies against SARS-CoV-2. (A Seroconversion of IgM and IgG. B Duration of IgM and IgG. Blue line means IgG, and red line means IgM. The shaded areas represents the 95% confidence interval.)Back to article page