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Fig. 4 | BMC Immunology

Fig. 4

From: A longitudinal study of humoral immune responses induced by a 3-dose inactivated COVID-19 vaccine in an observational, prospective cohort

Fig. 4

Effect of age on humoral immune response induced by CoronaVac. The levels of anti-SARS-CoV-2 IgM (A), IgG (B, C) and surrogate neutralizing antibodies (E, F) among participants of different age groups (21–30 years, 31–40 years, 41–50 years, 51–60 years) were compared. ns indicates no statically significance. Statistical significance was determined by Kruskal–Wallis test. ns indicates no statically significance. **P < 0.01

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BMC Immunology

ISSN: 1471-2172

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