Hepatitis B two-half common results and clinical significance HBsAg Anti-HBs Henan First Affiliated Hospital of Traditional Chinese Medicine College of Pediatrics Yan Yongbin HBeAg An-HBe An-HBc Appearance rate Clinical significance + + + + 30+% Acute hepatitis, chronically active, infectious + + + + 10%± Recovery, weakly infectious + + 10%- Recovery, weakly infectious + + 10%± Acute hepatitis, chronic carrier + + 10%- Acute window period, previously infected, still immune + 5%± Recovery, after active immunization