title: Transmission of hepatitis B virus.
mesh_terms: D005260:Female; D006509:Hepatitis B / Q000151:congenital / Q000453:epidemiology / Q000382:microbiology / Q000635:transmission*; D006801:Humans; D007231:Infant, Newborn; D007267:Injections / Q000009:adverse effects; D009055:Mouth / Q000382:microbiology; D011247:Pregnancy; D012749:Sexually Transmitted Diseases