All links open in a new window.
All linked files are pdf format and below 1000 KB.
For more information about Avian Influenza (H7N9), please click here: Avian Influenza (Bird Flu)
Influenza, or flu, is a respiratory infection caused by a variety of flu viruses. The "flu" is a common catch-all term used for a variety of illnesses, but it correctly applies only to the upper respiratory disease caused by the influenza virus.
Estimates are that between 15% and 40% of the population will develop illness from influenza every year. An average of about 36,000 people per year in the United States die from influenza, and 114,000 per year have to be admitted to the hospital as a result of influenza infection. Anyone can get the flu (even healthy people), and serious problems from influenza can happen at any age. People age 65 years and older, people of any age with chronic medical conditions, and very young children are more likely to get complications from influenza.
For the most current information about influenza in Florida, please see Florida's weekly surveillance report, the Florida Flu Review.
Week 9, 2014 Florida Flu Review Surveillance Summary
- This season the FDOH has received reports of severe influenza illness, including hospitalizations requiring intensive care unit (ICU) care, among pregnant women.
- None of these women had received the 2013-2014 influenza vaccine.
- Most Florida counties reported mild influenza activity. In week 9, 40 counties reported decreasing influenza activity; 24 counties indicated activity is at a plateau
- Emergency department (ED) and urgent care center (UCC) ILI visits have decreased in recent weeks and is as expected for this time of year; preliminary data suggest that that the influenza season has peaked.
- In Florida, the most common influenza subtype detected at the Bureau of Public Health Laboratories (BPHL) in recent weeks has been influenza A (2009 H1N1).
- In week 9, 16 of 31 specimens submitted for influenza testing at BPHL tested PCR positive for influenza. Two were PCR positive for influenza A (2009 H1N1), one was PCR positive for influenza A (H3), and five were PCR positive for influenza B. All of these are seasonal strains of influenza.
- Nationally (including Florida), almost all circulating influenza is a good match for the vaccine.
- No influenza or ILI outbreaks (epidemiologically-linked cases of influenza in a single setting) were reported in week 9.
- No pediatric influenza-associated deaths were reported in week 9. Three pediatric influenza-associated deaths have been reported in the 2013-2014 season.
- The preliminary estimated number of Florida deaths due to pneumonia or influenza in week 8 is lower than the seasonal baseline, based on previous years’ data. Estimated deaths due to pneumonia and influenza are identified using preliminary death certificate data.
- Because of local influenza activity in some areas of the state, Florida reported local influenza activity to CDC in week 9. This activity level represents the geographic spread of influenza in Florida.