Baseline characteristics of the subjects, considering only Plasmodium vivax infections.

A Chi-square test was performed to compare the distribution of each variable between the groups.Individuals presenting AgHBS−/anti-HBS+/anti-HBc+ with no HBV DNA amplification by quantitative RT-PCR (qPCR) were considered to have previous HBV infection, those presenting AgHBS+/anti-HBS− and detectable viremia by qPCR were considered currently infected with HBV and those with AgHBS−/anti-HBS+/anti-HBc− were considered vaccinated against the virus.§Cut-off IL-10 and IFN- γ plasma levels were determined by choosing the values that which implied the highest likelihood ratio in discriminating asymptomatic from symptomatic malaria infection using a ROC analysis.