During week 36, 5.5% of all deaths reported through the 122 Cities Mortality Reporting System were due to P&I.

While flu spreads every year, the timing, severity, and length of the season varies from one year to another.

This time of year is called "flu season." In the United States, flu season occurs in the winter; flu outbreaks can happen as early as October and can last as late as May. CDC says the flu

rompt treatment can mean the difference between having a milder illness versus very serious illness that could result in a hospital stay.

But while children may have nausea, stomach pain and/or vomiting with flu, the key influenza symptoms in children include a high fever, chills and shakes, body aches, sore throat, headaches and a dry hacking cough.

Over a period of 30 years, between 1976 and 2006, estimates of flu-associated deaths in the United States range from a low of about 3,000 to a high of about 49,000 people. Some people, such as older people, young children, pregnant women, and people with certain health conditions, are at

Approximately 20% to 40% of the worldwide population became ill

50 million people died

675,000 people died in the United States