Health ❯ Epidemiology

Disease Trends

Infection Rates Seasonal Illnesses Influenza Flu Cases Syphilis Cases COVID-19 Pertussis Cases Respiratory Infections Flu Season COVID-19 Cases

Tick Bites Hit Highest Spring ER Rate Since 2017, With Northeast and Midwest Leading

A mild winter likely drove the early surge, prompting a prevention push.

Rotavirus Surge Across U.S. Drives Pediatric ER Visits

Early Tick Season Drives Decade‑High ER Visits for Tick Bites, CDC Says

CDC Data Show Early Surge in Tick‑Bite ER Visits to Highest Since 2017

CDC Reports Sharp Rise in Extensively Drug-Resistant Shigella in the U.S.

San Francisco Reports 2025 Drop in STIs as Doxy-PEP Use Expands

Fiocruz Flags Rising Influenza A and Severe Respiratory Cases Across Brazil

Okinawa Confirms First Measles Case of 2026

Pfizer and BioNTech Halt U.S. COVID Vaccine Trial for 50–64-Year-Olds Over Slow Enrollment

HMPV Activity Climbs Across U.S., Reaching 5% of Positive Respiratory Tests

Fukuoka Updates Searchable List of Flu-Related School Class Closures

HMPV Levels Surge in Northern California Wastewater as U.S. Positivity Rises

England TB Cases Flat in 2025, Rate Still Above Pre-Pandemic Level

Flu Wave Intensifies in Parts of Germany as H3N2 Variant Drives Cases

UK Scabies Cases Climb, With GP Consultations Twice the Average and Nearly 900 in a Week

Argentina Reports Sharp 2025 Syphilis Surge as Early 2026 Counts Stay Elevated

Flu Wave Intensifies in Saxony as Mittelsachsen Hospitals Log More Cases

Spain’s Flu Picture Splits: Madrid Cases Fall as Galicia Hospitalizations Rise

France’s Flu Wave Shows Tentative Peak as Hospitals Face Elevated Strain

Adenovirus in the Spotlight as UK Data Show Decline in Cases