In today's news, a new strain of Virus known simply as "Kira" has ravaged the world. Early blood tests showed infection by the virus, but with no visible symptoms, it was considered harmless. The virus quickly conformed to all environmental factors, and spread fast, with thousands of infected found in all countries. Mere days before testing for a new vaccine, the virus had developed to travel through air and water, as well as the previously observed transmittance via rodents and insects.
Pressing Update: within the last few hours, thousands of cases world-wide have been reported in which notably healthy people have been dying of heart attacks. Scientists are researching a connection to the "Kira" virus. Unfortunately, due to the increase in hospital admittance, and wide-spread embargoes, a vaccine for the virus isn't expected to be developed inside of the year.
Humanity is expected to die out inside of the week.
(This is my way of saying I won.)