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.
Because the virus is new, the human population has little to no immunity against it. The virus spreads quickly from person-to-person worldwide. The United States is not currently experiencing a flu pandemic. If a pandemic occurs, the federal government will work to identify the cause and create a vaccine.Flu.gov will provide updates on the steps the federal government is taking to address the pandemic.ecause the virus is new, the human population has little to no immunity against it. The virus spreads quickly from person-to-person worldwide. The United States is not currently experiencing a flu pandemic. If a pandemic occurs, the federal government will work to identify the cause and create a vaccine.