Abstract
Elevated levels of Epstein-Barr virus (EBV) gp350 and gH/gL antibodies have been associated with a lower risk of developing nasopharyngeal carcinoma (NPC), although the evidence remains inconclusive and unexplained. We conducted a longitudinal study within a high-risk Taiwanese cohort, analyzing total immunoglobulin against EBV-gp350 and -gH/gL in blood and EBV DNA shedding in saliva. Contrary to our hypothesis-that elevated levels of antibodies previously shown to be associated with a lower NPC risk should result in a decrease in EBV shedding in saliva-higher anti-gp350 antibodies at baseline were significantly associated with detectable EBV DNA in saliva at follow-up (odds ratio [OR], 1.99 [95% confidence interval {CI}, 1.03-3.97]; P = .04). Higher anti-EBV-gH/gL antibodies at baseline were not significantly associated with risk of detectable EBV DNA at follow-up (OR, 0.69 [95% CI, .35-1.32]; P = .26). These findings underscore the complexity of virus-host interactions and emphasize the need for further investigations into their role in EBV-associated diseases.
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