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Epidemiology

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First Human West Nile Cases of 2025 Confirmed in Delaware County, Pa., and Massachusetts

Health officials warn of elevated risk through the fall, urging precautions until the first hard frost.

Researchers Say Chagas Disease Is Endemic in Parts of the U.S. as California Infections May Reach 100,000

Stories older than 24h

Skipping Breakfast and Late Dinners Linked to Higher Osteoporotic Fracture Risk, Large Japanese Study Finds

NIH MERIT Award Backs Quest to Turn Rare HIV Cures Into Scalable Immunotherapy

Energy-Reduced Mediterranean Diet Plus Exercise Cuts Type 2 Diabetes Risk by 31%

Stratus Variant Drives California COVID Wave as FDA Limits New Vaccine to High-Risk Patients

Dengue Day Prompts New Vaccine Push as Mexico Logs 80% Drop in Cases

Harlem Legionnaires’ Outbreak Hits 113 Cases, 6 Deaths; Bronx Cluster Deemed Unrelated

Mount Sinai Finds Three Human Antibodies That Prevent Fatal Mpox in Rodents

Mediterranean Diet Linked to Lower Dementia Risk, With Greatest Benefit in APOE4 Homozygotes

Vitamin D Guidance Emphasizes Testing, Safe Sun and Cautious Supplement Dosing

Measles Resurgence Triggers New Alerts in Australia as Alabama Confirms First Case Since 2002

Study Links Parental Liver-Disease Death to Double the Risk of Alcohol-Associated Hepatitis

FDA Suspends Valneva’s Ixchiq Chikungunya Vaccine Over Safety Reports

West Nile Activity Intensifies With 2 Deaths in Minnesota and New Signals in New York, Maryland and Indiana

Moderate-to-Severe Head Injury Linked to Higher Malignant Brain Tumor Risk, Study Finds

South Lake Tahoe Resident Diagnosed With Bubonic Plague After Camping Trip

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

New Jersey Confirms Measles Case, Warns PATH and Light Rail Riders

California Confirms Bubonic Plague Case Linked to Flea Bite Near Lake Tahoe