Whats the difference between a pandemic influenza outbreak and a bad influenza season?
• An influenza pandemic is a global outbreak of disease that occurs when a new influenza virus appears or “emerges” in the human population, causes serious illness and then spreads easily from person to person worldwide. • Pandemics are caused by a new strain of influenza against which there is little or no natural resistance and no vaccine. • Influenza viruses that have circulated previously cause normal annual influenza outbreaks. Many people have some immunity to circulating strains. Every year in the United States, on average, 5% to 20% of the population gets the flu. • In a pandemic influenza outbreak: • Symptoms might be more severe and complications more frequent. • Healthy people might be at increased risk for serious complications. • Hospitals and doctor’s offices might be overwhelmed. • Vaccine probably would not be available in the early stages of a pandemic. • Effective antiviral medicines might be in limited supply. • Society may be seriously impacted (e.g., widespread res
• An influenza pandemic is a global outbreak of disease that occurs when a new influenza virus appears or “emerges” in the human population, causes serious illness and then spreads easily from person to person worldwide. • Pandemics are caused by a new strain of influenza against which there is little or no natural resistance and no vaccine. • Influenza viruses that have circulated previously cause normal annual influenza outbreaks. Many people have some immunity to circulating strains. Every year in the United States, on average, 5% to 20% of the population gets the flu.
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