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CDC

Antimicrobial Resistance

Fluoroquinolone-resistant E. coli

% Resistant in 2024

39.1% Resistant

Number of Resistant Isolates of the Total Number of Isolates Tested In 2024

5,927 Resistant

/ 15,145 Tested

% Resistant by Patient Age in 2024

Pediatric:
39.1% Resistant
Adult:
39.1% Resistant

Pathogen Profile

Fluoroquinolone-resistant E. coli

E. coli cause pneumonia, urinary tract infections, and bloodstream infections in hospitalized patients. Resistance to fluoroquinolones among E. coli makes treating such infections difficult.

Current Threat Report

Threat LevelNot Currently Rated

Source: COVID-19: U.S. Impact on Antimicrobial Resistance, Special Report 2024

Years Included
2011 - 2024
Resources

Geographic Locations

Antimicrobial resistance varies by location, driven by a number of factors, including antibiotic use and infection control practices in individual healthcare facilities, the underlying health and age of the patient population, and regional spread from nearby locations.

Percent Fluoroquinolone resistance Among E. coli by State Map

This map shows the variation in % fluoroquinolone resistance among E. coli causing all event types in 2024.

Percent Fluoroquinolone resistance Among E. coli by State

Percent Fluoroquinolone resistance Among by State
Locationvalue
Alabama31.8
Alaska17.2
Arizona42.6
Arkansas39.3
California44.6
Colorado34.1
Connecticut35.5
Delaware33.3
District of Columbia45.9
Florida44.9
Georgia47.7
Hawaii35.3
Idaho20.3
Illinois42
Indiana33.6
Iowa29.2
Kansas36
Kentucky39.4
Louisiana39.1
Maine28.8
Maryland40.3
Massachusetts46.7
Michigan28.9
Minnesota33.1
Mississippi47.7
Missouri26.4
Montana26.4
Nebraska36
Nevada35.2
New Hampshire16.9
New Jersey47.7
New Mexico38
New York40
North Carolina35.2
North Dakota30
Ohio32.8
Oklahoma42.2
Oregon25.4
Pennsylvania30.2
Puerto Rico60.3
Rhode Island46.9
South Carolina32
South Dakota21
Tennessee36.7
Texas51.2
Utah34.6
Vermont20
Virginia36.7
Washington36.7
West Virginia37.4
Wisconsin29.6
WyomingInsufficient Data

Percent Fluoroquinolone resistance Among E. coli by State List

Geography

Geography
statevalue
United States39.1%
Alabama31.8%
Alaska17.2%
Arizona42.6%
Arkansas39.3%
California44.6%
Colorado34.1%
Connecticut35.5%
Delaware33.3%
District of Columbia45.9%

Changes Over Time in Fluoroquinolone resistance Among E. coli

This graph displays percent antimicrobial resistance from 2011 to 2024 for all event types. Blank areas of the chart represent 0% resistance, indicating that zero resistant pathogens were reported for the selected year, phenotype, and HAI type. “Insufficient data” indicates that less than 20 pathogens were isolated and tested for resistance.

Changes Over Time in Fluoroquinolone resistance Among E. coli
Year% Resistant
201132.8
201231.3
201334.9
201434.6
201536.8
201636.3
201735.7
201833.9
201933.2
202035.2
202134.7
202235.5
202337.7
202439.1

Healthcare Facility Type

The setting or type of healthcare facility can influence the types of procedures and prevention measures that are related to healthcare-associated infections and antimicrobial resistance.

Fluoroquinolone resistance Among E. coli by Hospital Type

This graph displays percent antimicrobial resistance by hospital type in 2024.

Percent resistant Among E. coli by Hospital Type

Percent resistant Among E. coli by Hospital Type
Hospital Type% Resistant
General Acute Care Hospitals39.3
Long Term Acute Care Hospitals47.4
Inpatient Rehabilitation Facilities28.6

Footnotes

  • HAIs include Catheter-associated Urinary Tract Infections (CAUTI), Central Line-associated Bloodstream Infections (CLABSI), and Surgical Site Infections (SSI).
  • CI (Confidence Interval) - The national, regional, and state-level data included in Antimicrobial Resistance information are displayed with 95% confidence intervals around the percent resistance, which were calculated using a mid-P exact test and are an indication of precision.
  • Map legends are classified using the Jenks Natural Breaks method.