5 n-count A medium is a substance or material which is used for a particular purpose or in order to produce a particular effect. Blood is the medium in which oxygen is carried to all parts of the body..., Hyatt has found a way of creating these qualities using the more permanent medium of oil paint.
An influenza pandemic is a global outbreak of disease that occurs when a new influenza A virus appears or âemergesâ in the human population, causes serious illness in people, and then spreads easily from person to person worldwide. Pandemics are different from seasonal outbreaks or âepidemicsâ of influenza.
The Pandemic will progress through the post peak period of the pandemic phase and then to the post pandemic phase. The Post Pandemic Phase When the peak period of infection has passed and only a few outbreaks here and there remain, the WHO will declare the pandemic is over and the Post Pandemic Phase is begun.