215 Ch 215. Hepatitis D and Hepatitis E

HDV: defective virus requiring HBV; co-infection vs superinfection; bulevirtide (Hepcludex) 2020 EU approval game changer; HEV: fecal-oral acute hepatitis, severe pregnancy mortality 20-30% in 3rd trimester; chronic HEV in immunocompromise (genotype 3); ribavirin treatment; Hepai 239 vaccine (China only)。