Are Age-Appropriate Flu Vaccines Interchangeable?

A child receives a trivalent inactivated flu shot for his first ever flu vaccine. For his second dose, you only have on hand the quadrivalent live attenuated nasal vaccine. Is this a problem?

A healthy 26-month-old child is in your office. He received a 0.25 cc dose of a trivalent inactivated shot (Fluzone) 6 weeks ago as his first ever flu vaccine.


Which of the following should he receive today?