Index/Topics/Vaccine hesitancy

Vaccine hesitancy

The potential increase in vaccine hesitancy due to the removal of thimerosal from vaccines.

Fact-Checks

7 results
Jan 12, 2026
Most Viewed

Which groups and influencers promoted ivermectin and what were their motivations?

Ivermectin’s rise from an antiparasitic to a politicized COVID remedy was driven by a small set of physician-led advocacy groups, conservative media personalities and social-media influencers, telemed...

Jan 26, 2026
Most Viewed

What alternatives replaced mercury preservatives in vaccines?

, an ethyl‑mercury preservative used for decades in multi‑dose vaccine vials, was largely phased out of routine childhood vaccines beginning in 1999 and removed from most products through reformulatio...

Jan 12, 2026
Most Viewed

What % US has never had a covid vaccine hot?

Current estimates of how many Americans have never received any COVID-19 vaccine dose vary by data source and date, clustering roughly between single-digit percentages and the low‑20s: federal CDC rep...

Jan 22, 2026

Are measles cases increasing in the U. S.?

Yes: surged in the in 2025 to levels not seen in decades and the early 2026 data show continued transmission and multiple state outbreaks, meaning cases are higher now than in recent years and remain ...

Jan 19, 2026

How do COVID-19 vaccines affect individuals with diabetes?

COVID-19 vaccination reduces the risk of severe COVID-19 in people with diabetes — a group at higher baseline risk of hospitalization and death from infection — and is considered safe for most patient...

Jan 19, 2026

How have social media and political messaging affected public demand for veterinary ivermectin during the pandemic?

Social media amplification of hopeful, emotive claims and politically coded messaging materially increased public demand for ivermectin — including veterinary formulations — during the COVID-19 pandem...

Jan 9, 2026

Vilification of Wakefield was unfair

Andrew Wakefield’s 1998 Lancet paper was eventually judged fraudulent, retracted, and found to involve ethical breaches and conflicts of interest that produced measurable public harm — facts that expl...