『Flu Surge, Measles Spike, and Vaccine Changes Alarm Public Health Experts Nationwide in Challenging 2025 Season』のカバーアート

Flu Surge, Measles Spike, and Vaccine Changes Alarm Public Health Experts Nationwide in Challenging 2025 Season

Flu Surge, Measles Spike, and Vaccine Changes Alarm Public Health Experts Nationwide in Challenging 2025 Season

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 Listeners, public health alerts across the United States today center on a severe flu surge, rising measles cases, and updates to childhood vaccination guidelines. The Centers for Disease Control and Prevention reports over 7.5 million flu illnesses nationwide this season, with 81,000 hospitalizations and 3,100 deaths as of late December 2025, driven by a dominant H3N2 strain that's evading much prior immunity and only partially matched by this year's vaccine, which offers about 30 to 40 percent protection against severe disease according to Dr. Philip Chan of the Rhode Island Department of Health. CDC surveillance shows sharp increases in test positivity, outpatient visits, emergency encounters, and admissions, with the highest burden on adults over 65, children under 5, non-Hispanic Black people, and American Indian or Alaska Native populations; weekly hospitalizations hit 19,000 in one recent period, marking some of the highest early-season levels since 2010-2011.

Flu symptoms include fever, headache, muscle aches, and general malaise, but RSV and COVID-19 are circulating too, sometimes co-infecting patients. Pima County Health Department in Arizona issued an alert on January 2 noting doubled influenza-like illness rates at 6 percent, exceeding the 3 percent epidemic threshold, with dropping hospital bed availability prompting enhanced precautions like masking, visitor limits, and CDC respiratory prevention strategies in healthcare settings. Experts urge vaccination even if imperfect, plus handwashing, staying home when sick, and early testing or antivirals for high-risk groups; seek urgent care for trouble breathing, chest pain, dizziness, or inability to eat or drink.

Measles cases hit 2,065 in 2025—the most in over 30 years—per CDC data through December 30, with risks of losing elimination status tied to a West Texas outbreak. A JAMA Network Open study found babies missing 2-month vaccines are over seven times more likely to skip MMR shots by age 2, with on-time first doses dropping three percentage points from 2021 to 2024 amid post-pandemic hesitancy; pediatricians should counsel parents early on the schedule starting at birth or 2 months for diseases like hepatitis B, rotavirus, DTaP, polio, Hib, and pneumococcal.

The CDC's Advisory Committee on Immunization Practices recently voted to end universal hepatitis B shots for all newborns, recommending them only if mothers test positive or status unknown, shifting others to parent-provider decisions at 2 months; this has sparked debate over reduced infant protection versus choice, with Centers for Medicare and Medicaid Services also dropping childhood vaccine reporting requirements.

Stay vigilant, get vaccinated, test if symptomatic, and protect vulnerable loved ones amid this respiratory season peak fueled by holiday travel.

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