Hybrid vaccinia virus for mass hepatitis immunization?
D006509:Hepatitis B / Q000517:prevention & control; D006514:Hepatitis B Surface Antigens / Q000235:genetics*; D006801:Humans; D014616:Vaccinia virus / Q000235:genetics / Q000276:immunology*; D014765:Viral Vaccines / Q000276:immunology*
D006514:Hepatitis B Surface Antigens; D014765:Viral Vaccines