Experts at Hokkaido University are describing a previously unknown infectious disease that has emerged in Japan. Dubbed the “Yezo virus," the novel virus is transmitted through tick bites and is characterized by fever and lowered levels of blood platelets and leukocytes.  "At least seven people have been infected with this new virus in Japan since 2014, but, so far, no deaths have been confirmed," said virologist Keita Matsuno. The Yezo virus was discovered in 2019 when a man was treated for fever and pain after a tick...