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Disease Outbreaks

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L.A. County Confirms Fifth Measles Case Linked to LAX Arrival

Officials will alert exposed travelers with a symptom watch through June 4.

Travel-Linked Measles Cases Prompt Exposure Alerts in Maryland and Rhode Island

Maricopa County Confirms Measles Case, Identifies Three Queen Creek Exposure Sites

Cook County Warns of Measles Exposures at O'Hare and North Suburban Sites

Bavaria Confirms Rare Borna Virus Infection in Erding District

Ceará Confirms Second Mpox Case of 2026 in Fortaleza

Santiago del Estero Confirms Local Chikungunya Cases as Northern Argentina Outbreak Widens

Brazil Mpox Cases Climb to 88 After Sharp Late-February Increase

New Measles Alerts at Disneyland and D.C. March for Life as California Confirms More Cases

India Confirms Two Nipah Virus Cases in West Bengal as Asian Airports Tighten Screening

Argentina Reports 2025 Pertussis Rebound With 1,055 Confirmed Cases

NSW and SA Issue Measles Exposure Alerts Tied to Adelaide–Sydney Flight and Sydney Hospital

Measles Resurgence Triggers New Airport Alerts as South Carolina, Utah Case Counts Climb

Measles Outbreaks Worsen in South Carolina and Along the Arizona–Utah Border as Michigan Flags Hospital Exposure

H3N2 Hong Kong Flu Detected in Romania as Russia’s Early Wave Exceeds Epidemic Threshold

Norovirus Activity Climbs Early Across U.S. as UK Reports Smaller Rise

New York Flu Surge Accelerates as H3N2 Variant Gains Ground

U.S. Whooping Cough Cases Top 25,000 in 2025 as Kentucky Confirms Third Infant Death

Czech Hepatitis A Outbreak Triggers Bilingual Warnings at Border Ski Areas

Russia Sees Flu Uptick as Health Officials Say No Epidemic Yet