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Secondary structure of the consensus PoAstV3 3‘UTR region of USA (a), Spanish (b), Hungarian (c) strains, strain GER/L00919-K17/2014 (d) and consensus Japanese strain (e). Secondary structures of (a–e) are illustrated without (left) and with pseudoknotted interaction (right). Green, yellow and blue bases indicate stems, interior loops, and hairpins, respectively. Red and orange bases indicate multiloops, and 5′ and 3′ unpaired regions, respectively.
