These products can include a pdm09-like element that underwent quadruple reassortment. A universal form of this product has been designed using the stem of a hemagglutinin protein, (-5[1])which is one of two types of surface proteins found on the target of this product. In the USA, this product is moving to a trivalent composition as the Yamagata lineages are (10[1])no longer circulating. (-5[1])This yearly product is traditionally (10[1])produced (10[2])by growing strains in chicken eggs. (10[1])In North America, this product is administered in the fall, before the onset (10[1])of a virus’ namesake “season”. (10[1])For 10 points, name this yearly product, used against a respiratory virus with subtypes like H1N1. (10[1])■END■ (10[1])