Babesiosis is a parasitic infection of red blood cells caused by *Babesia* species. It's primarily transmitted by ticks and can cause a malaria-like illness, particularly in immunocompromised individuals, the elderly, and those without a spleen. It is most common in the Northeastern and Upper Midwestern United States.
Transmission methods vary. Please consult CDC or WHO resources for specific information.
Contagious Period: Varies by disease
Real-time intelligence from global health monitoring and AI-powered surveillance
Data sources: BEACON, ProMED, WHO, CDC, and 50+ national health agencies
Our AI-powered surveillance hasn't detected significant Babesiosis activity in the past 30 days.
Real-time monitoring continues 24/7 across BEACON, ProMED, WHO, CDC, and 50+ global health agencies
Currently, Babesiosis case counts are within baseline expectations globally. However, diseases can emerge rapidly, which is why continuous monitoring is critical.
Download the Virus Watcher app to get instant alerts if Babesiosis activity increases in your region or travel destinations.
Even without active outbreaks, understanding Babesiosis prevention helps protect you and your community:
Track Babesiosis and 200+ other diseases with personalized alerts
Trusted information from leading health organizations
Global disease surveillance and guidelines from the World Health Organization
View WHO Resources →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: 2026-03-05
Get real-time alerts and intelligence on Babesiosis and 200+ other diseases. Used by healthcare systems, EMS, schools, and travelers worldwide.