Hepatitis B immunity and response to booster vaccination in South African students following childhood immunisation.

S Afr J Infect Dis · 2026 · PMC13347778 · PMID 42428786

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a decreasing trendno p-value reported

7 Public sector laboratory data from South Africa showed a decreasing trend in HBsAg positivity rates between 2015 and 2019 and also in incidence rates of acute HBV infection, likely because of the efficacy of childhood vaccination in preventing HBV transmission. 24 Similar trends of decreasing seropositivity have been observed in numerous other countries following the int

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