The U.S. Food and Drug Administration has approved the use of the 0.5 mL dose of Fluzone Quadrivalent (influenza vaccine) to include children age 6 through 35 months. Sanofi Pasteuri, will have the 0.5 mL dose, in addition to the 0.25 mL dose, available for the upcoming 2019-20 season for this expanded age range. Sanofi Pasteur's flu vaccine portfolio includes options to help protect all eligible patients from influenza. In addition to Fluzone Quadrivalent vaccine, the product portfolio includes Flublok Quadrivalent (influenza vaccine) and Fluzone High-Dose (influenza vaccine), the only two flu vaccines proven to help prevent more cases of flu in older adults, compared to their standard-dose flu vaccine comparators in randomized controlled trials. In these same trials, the most common local and systemic adverse reactions to Flublok Quadrivalent and Fluzone High-Dose vaccines include pain at the injection site, headache and myalgia.