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Vector-Borne Diseases

West Nile Virus Chikungunya Tick-Borne Diseases Ticks Chikungunya Virus Dengue Eastern Equine Encephalitis Mosquito-Borne Diseases Japanese Encephalitis Dengue Fever

West Nile Virus Activity Intensifies With NYC’s First Human Cases and Maryland’s First of the Year

Health officials escalate spraying during the August–September peak.

ECDC Flags 'New Normal' as Europe Sets Record Chikungunya Outbreaks, West Nile Reaches New Areas

Europe Logs Record Chikungunya Outbreaks as Global Surge Intensifies

Chicago Elevates West Nile Risk to High After First Human Cases Confirmed

Austin Public Health Investigates First Suspected West Nile Virus Case in Travis County

West Nile Virus Detected in San Antonio Mosquitoes; Denver Confirms First Human Case

Wisconsin, Texas and Toronto Report First West Nile Virus Human Cases of 2025

Early West Nile Virus Surge Drives Third Illinois Human Case, Elevated County Risk

Italy Confirms First Local Dengue and Chikungunya Cases in Emilia-Romagna

WHO Warns of Global Chikungunya Threat as South China Outbreak Spikes

Tiger Mosquito Establishes in Munich and First Border-Region Chikungunya Case Confirmed

Mexico Reports 31 Human Screwworm Myiasis Cases in Southern States

Daily Dengue and Viral Fever Cases Climb in Mumbai and Hyderabad After Monsoon Rains

West Nile Virus Detected in Mosquitoes in Philadelphia and Four NYC Boroughs

West Nile Virus Confirmed in Massachusetts Goat as Illinois Reports Second Human Case

WHO Publishes First Unified Arbovirus Treatment Guidelines as Europe Sees Local Chikungunya Case

Nagaland Launches Expanded Mosquito Control Following Nine Japanese Encephalitis Cases

Germany’s Stiko Recommends First Travel Vaccine Against Chikungunya for High-Risk Groups

Local Chikungunya Infection Confirmed Near German Border

Tick Bite ER Visits Surge to Highest Level Since 2017