Antibody concentrations of three EBV proteins in Guangzhou and Beijing.

<p>(A) Average concentrations of VCA-IgG were measured in all the samples. (B) Average concentrations of EBNA-IgG were measured in all the samples. (C) Average concentrations of EA-IgG were measured in all the samples.</p

Demographic information for the samples in the study.

<p>Demographic information for the samples in the study.</p

EBV seropositivity rates in Guangzhou and Beijing.

<p>(A) Four EBV antibodies were screened in 805 serum samples from Guangzhou. (B) Four EBV antibodies were screened in 973 serum samples from Beijing.</p

EBV-specific antibody seropositivity status by ELISA.

<p>EBV-specific antibody seropositivity status by ELISA.</p