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Influenza

Contact: Florida Health


Florida FLU REVIEW

Season: 2019-20 Week 41: 10/6/19-10/12/19

 Geographic Spread:
Sporadic

 Predominate Strain:
B Victoria lineage

 ILI Activity Trend:
Increasing

Influenza & influenza-like illness (ILI) activity summary:

In week 41, influenza and ILI activity remained at low levels across the state. Influenza and ILI activity are expected to increase in the coming weeks as the season progresses.

Influenza seasons vary in timing, severity, and duration. It is not possible to predict what the 2019-20 influenza season will be like in Florida.

Annual vaccination is the best way to protect yourself and your loved ones from influenza and its potentially severe complications. Now is the perfect time to get your flu shot.

During the last four weeks influenza A 2009 (H1N1) and influenza B Victoria lineage viruses were identified at similar frequencies at the Bureau of Public Health Laboratories. It is still too early to say what strain will predominate during the 2019-20 influenza season, however, influenza vaccines are designed to protect against the three or four strains experts believe will circulate during the season.

In week 41, five outbreaks were reported (five ILI outbreaks and no influenza-associated outbreaks). For more information about these outbreaks, see page 5. Information on respiratory syncytial virus-associated outbreaks and other respiratory disease outbreaks is also available (see pages 14-15).

The majority of county health departments reported no or mild activity in week 41.

No new influenza-associated pediatric deaths were reported in week 41.

The percent of specimens testing positive for rhinovirus decreased, but remained higher than other respiratory viruses under surveillance, including influenza. For more information, see page 4.

The Centers for Disease Control and Prevention recommends antiviral treatment be initiated as soon as possible for people with confirmed or suspected influenza who are at higher risk for complications (children <2 years, adults ≥65 years, pregnant women, and people with underlying medical conditions). Treatment should be administered within 48 hours of illness onset. For more information, contact your health care provider.

Your flu shot is the first and most important step to fight the flu.To locate a vaccine near you, visit: FloridaHealth.gov/FindAFluShot

Influenza or ILI Outbreaks
Reported as of 10/12/19

A map showing Counties with outbreak(s) reported in week 41: Escambia, Hillsborough, Palm Beach, Pinellas. Counties with 0 outbreaks this season: Alachua, Baker, Bay, Bradford, Brevard, Broward, Calhoun, Charlotte, Citrus, Clay, Collier, Columbia, DeSoto, Dixie, Duval, Flagler, Franklin, Gadsden, Gilchrist, Glades, Gulf, Hamilton, Hardee, Hendry, Hernando, Highlands, Holmes, Indian River, Jackson, Jefferson, Lafayette, Lee, Leon, Levy, Liberty, Madison, Manatee, Miami-Dade, Monroe, Nassau, Okaloosa, Okeechobee, Orange, Osceola, Pasco, Putnam, Santa Rosa, Sarasota, Seminole, St. Johns, St. Lucie, Sumter, Suwannee, Taylor, Union, Volusia, Walton, Washington. Counties with 1-2 outbreaks this season: Hillsborough, Pinellas, Martin, Polk, Wakulla, Palm Beach, Lake. Counties with 3-4 outbreaks this season: Escambia. Counties with 5+ outbreaks this season: None.

County Influenza Activity

A map showing that there was No Activity: Baker, Bay, Citrus, Dixie, Franklin, Gulf, Hamilton, Jefferson, Manatee, Nassau, Orange. Mild Activity: Alachua, Bradford, Brevard, Broward, Charlotte, Clay, Collier, Columbia, Miami-Dade, DeSoto, Escambia, Flagler, Gadsden, Gilchrist, Glades, Hardee, Hendry, Hernando, Highlands, Hillsborough, Holmes, Indian River, Jackson, Lake, Lee, Leon, Levy, Madison, Marion, Martin, Monroe, Okaloosa, Osceola, Palm Beach, Pasco, Pinellas, Polk, Putnam, Santa Rosa, Sarasota, Seminole, St. Johns, St. Lucie, Sumter, Suwannee, Taylor, Volusia, Wakulla, Washington. Moderate Activity: Duval, Lafayette, Union, Walton. Elevated Activity: None. Unknown: Calhoun, Liberty, Okeechobee.

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