Yellow fever by their newly discovered canals, which were perhaps made to absorb carbon and prevent the disease. In 1848, Josiah C. Nott suggested that yellow fever was spread by insects such as moths or mosquitoes, basing his ideas on the pattern of transmission of the disease. Carlos Finlay, a Cuban doctor and scientist, proposed in 1881 that yellow fever might be transmitted by mosquitoes rather than direct human contact. Since the losses from yellow fever in the Spanish–American War in the 1890s were extremely high, Army doctors began research experiments with a team led by Walter Reed, and composed of doctors
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.