Which influenza vaccine is appropriate for a 7-month-old girl?

The correct choice is Fluzone because this vaccine is specifically formulated for young children, including infants as young as 6 months old. Fluzone is an inactivated influenza vaccine that can be administered to children starting at 6 months of age and is approved for this age group, making it suitable for a 7-month-old girl.

Other options like Flublock and Fluad are not appropriate for this age group. Flublock is a recombinant vaccine designed for those age 18 years and older, while Fluad is an adjuvanted flu vaccine intended for older adults, typically recommended for those 65 years and older. Fluzone High-Dose is specifically formulated for older adults and is recommended for those aged 65 and older to enhance immunogenicity in that population.

Given the age of the child, Fluzone is the most fitting choice that aligns with the immunization recommendations for pediatric patients.