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Disease Prevention

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Brazil Confirms Second 2026 Measles Case in Rio

Health teams launched ring vaccination to keep the virus from spreading.

Tucumán Confirms Second Chikungunya Case as Salta Expands Testing to Nine Localities

Netherlands Declares Influenza Epidemic as H3N2 Becomes Dominant

Tucumán and Cusco Confirm First Local Cases of Influenza A H3N2 Subclade K

Argentina Opens Arbovirus Season With Imported Dengue and Chikungunya in Córdoba and Salta

U.S. Flu Wave Intensifies as Mexico Logs H1N1 Surge and PAHO Flags Dual Virus Risk

Russia's Flu Cases Climb With H3N2 Dominant as Early Tests Back Vaccine Fit

Utah–Arizona Measles Outbreak Spreads to Larger Towns as Utah Reports 58 Cases

Stratus and Nimbus Fuel UK Autumn Covid Rise as Targeted Protection Takes Focus

Measles Outbreak in Mexico Widens as Colima Confirms First Case and Chihuahua Records 21st Death

Karachi Confirms Congo Fever Death of 28-Year-Old Butcher as Toll Disputed

Zacatecas State Lab Confirms Human Rabies in Teen — First Case Since 1987

HIV Diagnoses Rise Across Germany as World AIDS Day Highlights Ongoing Challenges