Outbreak Tracker
LIVEActive and recent outbreaks of vaccine-preventable diseases. Data sourced from CDC, WHO, and PAHO disease surveillance systems.
Measles
Active Outbreak● High severityLinked to importations and under-vaccinated communities. MMR vaccine is 97% effective.
Whooping Cough (Pertussis)
Active Outbreak● High severityCyclical surge pattern. Infants under 1 year at highest risk. DTaP series critical.
Influenza
Seasonal● Moderate severityAnnual seasonal flu. Annual vaccination recommended for everyone 6 months and older.
Mpox (Monkeypox)
Active Outbreak● High severityWHO declared PHEIC in August 2024. Jynneos vaccine available for high-risk individuals.
Dengue Fever
Active Outbreak● High severityRecord-breaking epidemic year globally. Dengvaxia vaccine available for previously infected in endemic areas.
Polio (cVDPV2)
Active Outbreak● High severityCirculating vaccine-derived poliovirus type 2 in several countries. IPV essential.
Yellow Fever
Endemic● Moderate severityRequired for travel to endemic regions. Single dose provides lifelong immunity for most travelers.
COVID-19
Endemic● Moderate severityTransitioned to endemic management. Annual updated vaccines recommended. Variants continue to emerge.
Data note: Outbreak data is compiled from public CDC, WHO, and PAHO surveillance reports. Case counts and status may lag behind real-time conditions. Always check official sources for the most current information before making travel or health decisions.