Delaware

Tularemia in Delaware

Tularemia is a rare but serious bacterial infection caused by *Francisella tularensis*. It primarily affects wild animals, especially rodents, rabbits, and hares, but can be transmitted to humans. It is most common in rural areas of North America, Europe, and parts of Asia. Track Tularemia activity and outbreaks specific to Delaware.

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What is Tularemia?

Tularemia was first identified in 1911 in ground squirrels in Tulare County, California, from which it derives its name. The causative bacterium, *Francisella tularensis*, was isolated shortly thereafter. Due to its high infectivity and potential for severe illness, it has been studied as a biological warfare agent.

Symptoms

  • Sudden onset of *fever*, *chills*, *headache*, and *muscle aches*.
  • A skin *ulcer* appearing at the site of infection (e.g., tick bite), often with a black center.
  • *Swollen and painful lymph nodes* near the ulcer or site of exposure.
  • Fatigue and general weakness.
  • (Less common, but can occur) Cough, chest pain, sore throat, or diarrhea depending on the infection route.

Transmission

Tularemia is primarily transmitted through the bite of infected ticks or deer flies. It can also spread through direct contact with infected sick or dead animals (e.g., skinning rabbits) or by inhaling contaminated aerosols (e.g., dust from contaminated soil). Ingestion of contaminated food or water is another potential, though less common, route. It is not known to spread from person to person.

Contagious Period: Varies by disease

Prevention

  • Avoid direct contact with sick or dead animals, especially rabbits, hares, and rodents.
  • Use insect repellent (containing DEET or picaridin) to prevent tick and deer fly bites.
  • Wear gloves when handling wild animals (e.g., during hunting or trapping).
  • Cook game meat thoroughly to an internal temperature of at least 165°F (74°C).
  • Use treated or boiled water for drinking if unsure of source quality in endemic areas.
  • A vaccine is available, primarily recommended for individuals with high-risk occupational exposure (e.g., laboratory workers).

Delaware Health Resources

Local health department information and state-specific prevention guidance

We're Monitoring Delaware

Our AI-powered surveillance continuously monitors Tularemia activity across Delaware. We track data from state health departments, local hospitals, CDC reports, and 50+ global health sources to provide early warning of emerging threats.

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Delaware Health Department

For official state health alerts, vaccination locations, and public health guidance specific to Delaware, visit your state health department's website.

Protecting Yourself in Delaware

Whether you live in Delaware, are traveling there, or have family in the state, understanding Tularemia prevention is essential. Follow these evidence-based prevention measures:

Prevention Measures

  • Avoid direct contact with sick or dead animals, especially rabbits, hares, and rodents.
  • Use insect repellent (containing DEET or picaridin) to prevent tick and deer fly bites.
  • Wear gloves when handling wild animals (e.g., during hunting or trapping).
  • Cook game meat thoroughly to an internal temperature of at least 165°F (74°C).
  • Use treated or boiled water for drinking if unsure of source quality in endemic areas.
  • A vaccine is available, primarily recommended for individuals with high-risk occupational exposure (e.g., laboratory workers).

When to Seek Care

If you experience symptoms of Tularemia in Delaware, contact your healthcare provider immediately. Early diagnosis and treatment improve outcomes significantly.

Emergency symptoms: If you experience severe symptoms, difficulty breathing, or signs of dehydration, call 911 or go to your nearest emergency room.

Expert Resources & References

Trusted information from leading health organizations

CDC

Official guidance from the U.S. Centers for Disease Control and Prevention

View CDC Resources →

WHO

Global disease surveillance and guidelines from the World Health Organization

View WHO Resources →

Research

Latest peer-reviewed research and clinical studies

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Medically Reviewed Content

Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.

Last reviewed: 2026-06-29

Recent Tularemia Reports

No confirmed cases reported in Delaware yet. Here are the latest Tularemia reports from our global surveillance network.

Tick season is here in Pittsburgh. We look at where ticks hide, how they spread disease and the simple steps that keep kids and pets safer outside. A rare but potentially serious disease tied to rabbits and ticks has been detected in northern Colorado, prompting a warning as hum…

United States Minor Outlying Islands · Baker Island · 2026-06-15

Tularemia has been detected in a dead rabbit in Berthoud, Larimer County, Colorado, USA, consistent with the pathogen's known endemic presence in the region and its seasonal summer peak. No associated human cases have been reported with this detection, and the situation does not …

United States · 2026-06-12

A 23-year-old previously healthy woman was referred to the outpatient Clinic for Tropical and Travel Medicine, University Hospital Tübingen, in summer 2024. Eleven days earlier, within the local area of Baden-Württemberg, she had found an immobile red squirrel and had attempted t…

Germany · 2026-01-25

Francisella tularensis is a highly infectious, gram-negative bacterium that causes tularemia and may be transmitted through several pathways, including bites from infected ticks (primarily Amblyomma americanum and Dermacentor variabilis in the northeastern United States), deer fl…

World · World · 2026-01-26

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