IgG Subclass Levels in Malaria‐Infected Nigerians

. IgG class and subclass levels were measured in the sera of malaria-infected patients who had high serum antibody titres (≥ 1 in 5,120) as well as in uninfected controls with low serum malaria antibody titres (< 1 in 320). The malaria-infected patients had higher IgG and IgGI subclass levels than the uninfected controls (p< 0.005). There was a slight diminution in the mean IgG3 concentration in the malaria-infected patients.