Pregnancy: Efluelda is not approved for use in persons <65 years of age. There are limited human data on Fluzone High-Dose and no animal data available on Efluelda to establish whether there is a vaccine-associated risk with use of Efluelda in pregnancy.
Lactation: Efluelda is not approved for use in persons <65 years of age. No human or animal data are available to assess the effects of Efluelda on the breastfed infant or on milk production/excretion.