CityDays, formerly The Secret City: Humanity’s Last

Cases of the fast-acting Z-Virus reported in thirteen London boroughs. The disease, which has devastated societies all over the world, has made it to the UK's capital. The city's first case went feral two days ago at a Wembley pop concert. Dozens of fellow attendees were bitten, maybe more. These have since spread the virus to hundreds, maybe thousands of others. All citizens are advised to check their households for those with bite-marks and other possible signs of infection.