Vibriosis

Vibriosis is a bacterial infection caused by various species of Vibrio bacteria. These bacteria are naturally found in warm coastal waters and can cause illness in humans who consume contaminated seafood or expose open wounds to brackish or saltwater. It can lead to gastrointestinal issues, wound infections, or severe bloodstream infections.

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What is Vibriosis?

*Vibrio* bacteria, especially *Vibrio cholerae*, have been recognized for centuries as the cause of cholera pandemics, profoundly impacting global public health. The understanding of other *Vibrio* species causing human illness, like *V. parahaemolyticus* (common foodborne pathogen) and *V. vulnificus* (severe wound infections), expanded significantly in the 20th century with advancements in microbiology and diagnostics.

Symptoms

  • Gastrointestinal: Watery diarrhea, abdominal cramps, nausea, vomiting, fever.
  • Wound Infection: Redness, swelling, pain, and potentially skin lesions or ulcers around the wound.
  • Systemic (severe cases): Fever, chills, dangerously low blood pressure (septic shock), especially in immunocompromised individuals.

Transmission

Vibriosis primarily spreads through the consumption of raw or undercooked seafood, particularly shellfish like oysters, contaminated with *Vibrio* bacteria. It can also be transmitted when open wounds or broken skin are exposed to brackish or saltwater containing these bacteria. Person-to-person transmission is extremely rare for most *Vibrio* species, with the exception of *Vibrio cholerae* in epidemic settings.

Contagious Period: Varies by disease

Prevention

  • Avoid raw seafood: Do not eat raw or undercooked shellfish, especially oysters. Cook all seafood thoroughly.
  • Practice food safety: Wash hands thoroughly after handling raw seafood and prevent cross-amination with cooked foods.
  • Wound care: Cover open wounds when in contact with brackish or saltwater. Clean any wounds exposed to such waters immediately.
  • Currently, there is no vaccine available for general Vibriosis.

Active Outbreaks & Recent Cases

Real-time intelligence from global health monitoring and AI-powered surveillance

Data sources: BEACON, ProMED, WHO, CDC, and 50+ national health agencies

No Active Outbreaks Detected

Our AI-powered surveillance hasn't detected significant Vibriosis activity in the past 30 days.

Real-time monitoring continues 24/7 across BEACON, ProMED, WHO, CDC, and 50+ global health agencies

What This Means

Currently, Vibriosis case counts are within baseline expectations globally. However, diseases can emerge rapidly, which is why continuous monitoring is critical.

Stay Prepared

Download the Virus Watcher app to get instant alerts if Vibriosis activity increases in your region or travel destinations.

Prevention Remains Important

Even without active outbreaks, understanding Vibriosis prevention helps protect you and your community:

  • Avoid raw seafood: Do not eat raw or undercooked shellfish, especially oysters. Cook all seafood thoroughly.
  • Practice food safety: Wash hands thoroughly after handling raw seafood and prevent cross-amination with cooked foods.
  • Wound care: Cover open wounds when in contact with brackish or saltwater. Clean any wounds exposed to such waters immediately.
  • Currently, there is no vaccine available for general Vibriosis.
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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: 2026-06-03

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