Yellow fever was the first illness shown to be transmissible by filtered human serum and transmitted by mosquitoes, by Walter Reed around 1900. The positive-sense, single-stranded RNA is around 11,000 nucleotides long and has a single open reading frame encoding a polyprotein. Host proteases cut this polyprotein into three structural (C, prM, E) and seven nonstructural proteins (NS1, NS2A, NS2B, NS3, NS4A, NS4B, NS5); the enumeration corresponds to the arrangement of the protein coding genes in the genome. Minimal yellow fever virus (YFV) 3'UTR region is required for stalling of the host 5'-3' exonuclease XRN1. The UTR contains PKS3 pseudoknot structure which
Tokyo Fever music video for "Tokyo Fever." Type B, which featured a yellow backdrop, contained the bonus track "Dilemma," its corresponding instrumental and the dance version of "Tokyo Fever." Type C, which had a pink backdrop, carried the bonus track "Gimme a call," its corresponding instrumental and a dance tutorial video for "Tokyo Fever." For "Tokyo Fever," the lyrics were written by Saeki Yuusuke and Japanese duo CLARABELL, with the rap portions written by Lead's rapper Shinya Taniuchi. "Bokura no Yogaakeru Made" lyrics were written by PALEO with the music written by BOY SKI MASK, DEY GON GET IT, along with PALEO.