skip to content

It's a New Day in Public Health.

The Florida Department of Health works to protect, promote & improve the health of all people in Florida through integrated state, county, & community efforts.

skip to content


Contact the Florida Department of Health

Flu Review Maps

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. Below is a summary of the current flu review.

Summary - Week 46: November 15-21, 2015

State influenza and influenza-like illness (ILI) activity:

• Florida reported sporadic activity to the Centers for Disease Control and Prevention (CDC) in week 46.

Influenza activity has remained relatively stable in recent weeks. Low activity early in the season is not uncommon and is not predictive of an overall mild influenza season.

• Of concern, seasons where influenza A (H3) is the predominantly circulating strain are generally more severe, particularly in children <5 and adults ≥65 years old.

• Statewide emergency department (ED) and urgent care center (UCC) ILI visits are below levels seen in previous years at this time, although ILI visits to EDs and UCCs have increased slightly in recent weeks and are highest in the 0-4 age group in the South East.

• The preliminary estimated number of deaths due to pneumonia and influenza is similar to levels seen in previous years at this time.

• All Florida counties reported mild or no influenza activity in week 46.

• No influenza-associated pediatric deaths were reported in week 46 and none have been reported so far during the 2015-16 influenza season.

• No outbreaks of influenza or ILI were reported in week 46.

• The proportion of specimens testing positive for influenza at the Bureau of Public Health Laboratories (BPHL) has increased slightly in recent weeks but has remained low. Influenza percent positivity is expected to increase as the 2015-16 influenza season progresses.

• Influenza A (H3) is the most commonly circulating virus identified by BPHL so far in the 2015-16 season.

National influenza activity:

• Influenza activity levels remain low nationally but are increasing.

• The predominantly circulating strain identified nationally so far this season is influenza A (H3). Other strains of influenza are also circulating, but at lower levels.

• The CDC recommends vaccination as long as influenza viruses are circulating.

• To learn more please visit:

• Highly pathogenic avian influenza (HPAI) H5 viruses have been identified in U.S. backyard and commercial flocks of birds during the spring and summer of 2015. HPAI H5 has not been identified in Florida birds, but identifications are anticipated. No human HPAI infections have been identified in Florida or the rest of the nation.

To learn more about HPAI, please visit the Florida Department of Health's Novel Influenza Virus website.

*Note: This page contains materials in the Portable Document Format (PDF). The free Acrobat Reader may be required to view these files.