Which tetanus toxoid-containing vaccine would be appropriate for a 15-month-old girl who is up to date with her vaccinations?

The correct choice for a 15-month-old girl who is up to date with her vaccinations is the DTaP vaccine. DTaP stands for Diphtheria, Tetanus, and Pertussis, and it is specifically formulated for children to provide immunization against these three diseases. The DTaP vaccine is administered to children at ages 2, 4, 6, and 15-18 months, with a booster dose provided around 4-6 years of age.

At 15 months, it is appropriate for a child to receive DTaP if she is up to date with her vaccinations, as this falls within the recommended schedule. On the other hand, Td (Tetanus and Diphtheria) and Tdap (Tetanus, Diphtheria, and Pertussis) are generally recommended for older children, adolescents, and adults, being used for booster doses after the initial childhood vaccinations. The DT vaccine, which includes only Diphtheria and Tetanus, is no longer recommended for children beyond a certain age if they have already received the DTaP series.

Thus, DTaP is the appropriate choice for this scenario, as it aligns with the immunization guidelines