There are several seasonal influenza vaccines available in the US for 2020-2021. Although most influenza vaccines are a single dose, children aged 6 months to 8 years who are being vaccinated for the first time, whose vaccination history is unknown, or who have not received at least 2 lifetime doses before July 1, 2020, should receive 2 doses that are administered at least 4 weeks apart. Fluad is an inactivated trivalent vaccine that is recommended for adults aged 65 years or older and contains 1 influenza B virus antigen. Fluad quadrivalent and Fluzone high-dose quadrivalent are specifically recommended for patients aged 65 years or older.
Influenza Vaccine for 2020-2021. JAMA. 2020;324(17):1777–1778. doi:10.1001/jama.2020.19507
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