Looking for statistics, charts, or maps on H1N1 or seasonal influenza? Here are three sources to get you started:
Centers for Disease Control: Flu Activity & Surveillance
http://www.cdc.gov/flu/weekly/fluactivity.htm
Includes several charts and statistical tables including
- weekly and cumulative data on the number of infected
- a breakdown of types of influenza
- number of hospitalizations and deaths
- pediatric deaths and more
Also includes a map of the United States showing geographic spread and degree of reported flu activity (includes both seasonal and H1N1). Updated weekly.
http://www.cdc.gov/flu/weekly/WeeklyFluActivityMap.htm

American College Health Association
The American College Health Association collects data on the number influenza-like illnesses reported on colleges and universities in the United States. Counts are submitted on a voluntarily basis by colleges and universities and are not to be considered inclusive of all institutions of higher education.
Their epicurve chart displays weekly data from late August through present and shows the number of new cases and the “attack rate” per 10,000 people.
Google’s Flu Trends
Google’s Flu Trends map shows trends in flu search activity. Google reports that an increase in flu-related searches are “good indicators of flu activity.” Activity is mapped geographically for the United States and can be compared to data from prior years.
