
This Week in Virology TWiV 1234: Clinical update with Dr. Daniel Griffin
Jul 12, 2025
Dr. Griffin tackles contentious COVID-19 vaccination debates, emphasizing myocarditis risks and evolving safety perceptions. He uncovers surprising links between vaccination and reduced dementia risk while reviewing alarming statistics on measles, RSV, and influenza. The podcast dives into new antiviral treatments and the ongoing challenges posed by emerging COVID-19 variants. Additionally, it highlights the importance of vaccination for mitigating long-term health issues and discusses crucial community health initiatives.
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COVID Risks in Children
- COVID-19 caused over 7,000 child hospitalizations with 20% needing ICU in 12 months before April 2025.
- Half of these children were healthy and mostly unvaccinated, with 152 deaths, mostly under 4 years old.
Vaccines Linked to Dementia Reduction
- Adjuvanted shingles and RSV vaccines are linked to reduced dementia risk over 18 months.
- The AS01 adjuvant may play a direct role beyond just preventing infections, potentially protecting cognitive function.
Measles Outbreaks Resurge
- Measles cases in the US have risen to the highest since elimination was declared.
- Canada also faces rising measles, highlighting the impact of vaccine hesitancy under current leadership.



