There are three main types of metadata: â¢ Descriptive metadata describes a resource for purposes such as discovery and identification.It can include elements such as title, abstract, author, and keywords. â¢ Structural metadata indicates how compound objects are put together, for example, how pages are ordered to form chapters.â¢ Administrative metadata provides information to help manage a resource, such as when and how it was created, file type and other technical information, and who can access it. Structural metadata indicates how compound objects are put together, for example, how pages are ordered to form chapters. â¢ Administrative metadata provides information to help manage a resource, such as when and how it was created, file type and other technical information, and who can access it.
Sabinâs live-virus, oral polio vaccine (administered in drops or on a sugar cube) soon replaced Salkâs killed-virus, injectable vaccine in many parts of the world.
Be sure to test the mother's blood for HBsAg. Give 3 additional hepatitis B vaccine doses with single-antigen vaccine at ages 1, 2 to 3, and 6 months, or hepatitis B-containing combination vaccine at ages 2, 4, and 6 months (Pediarix) or 2, 4, and 12-15 months (Comvax).t depends on the schedule and manufacturer of the vaccine that you are using. For children age 11 through 15 years, the 2-dose Recombivax HB volume is 1.0 mL or 10 micrograms. Otherwise the 3-dose schedule of Recombivax HB is 0.5 mL or 5 micrograms and of Engerix-B is 0.5 mL or 10 micrograms.