Virus wiki
Cholera
Cholera is acute diarrheal disease caused by toxigenic Vibrio cholerae; outbreaks track unsafe water, sanitation, and hygiene failures.
Snapshot: 5/10/2026, 11:00:51 AM · 1 tracked locations · 79,840 active cases (dataset)
Important
Virus Tracker provides aggregated outbreak monitoring for education and situational awareness. It is not medical advice, a diagnostic service, or a substitute for guidance from qualified health professionals or official public health agencies. Always consult licensed clinicians and authoritative sources for personal health decisions.
Overview
Cholera spreads explosively where infrastructure is stressed by conflict, floods, or displacement. Rapid oral rehydration saves lives; antibiotics play a selective role. Virus Tracker maps regional signals where cholera appears in blended outbreak datasets.
Transmission
Fecal-oral routes via contaminated water and food; limited person-to-person spread compared to environmental amplification.
Symptoms & clinical notes
Profuse watery diarrhea and dehydration; severe cases present with shock. Children and malnourished individuals face higher mortality without treatment.
Prevention & control
Safe water, sanitation, hygiene promotion, and reactive vaccination campaigns in emergencies. Surveillance of water quality complements case counts.
Surveillance context
Laboratory confirmation and rapid tests improve cluster detection; cross-border notification prevents silent spread along migration corridors.
Key metrics
Active cases (dataset)
79,840
Reported deaths
4,110
Pressure index
24.14%
Cholera — global infection heat map
Country shading reflects relative active-case intensity from the current Virus Tracker dataset for this pathogen. Hover countries on desktop for counts.
Trajectory outlook
Trajectory (14d)
Regional analysis
Top regions by active cases
Top 1 tracked locations for Cholera by active cases in the current dataset.
Threat intelligence visuals
Threat Matrix
Pressure (x) vs CFR (y) with bubble size by active cases
Source Reliability
Healthy sources
4
Unhealthy sources
3
Average confidence
40.0%
Confidence exposure
31,936
Health ratio
Severity by Region
Top affected regions
| Location | Active | Deaths |
|---|---|---|
| Yemen (YE) | 79,840 | 4,110 |
FAQ
Is this page medical advice?
Virus Tracker provides aggregated outbreak monitoring for education and situational awareness. It is not medical advice, a diagnostic service, or a substitute for guidance from qualified health professionals or official public health agencies. Always consult licensed clinicians and authoritative sources for personal health decisions.
What does the pressure index mean on Virus Tracker?
Pressure index reflects active-case burden relative to recoveries in our models. It helps compare stressed outbreak zones within the dataset—it is not a clinical score.
How often is this wiki updated?
Figures refresh on the site’s ingestion and revalidation schedule (typically about every 30 minutes in production). Timestamps on the dashboard snapshot indicate the last build of the underlying dataset.
Why might the heat map not match official government totals?
We merge multiple open sources and fallbacks; reporting lag, testing policy, and geographic coverage differ by country. Use national health ministries for authoritative case definitions.