Index/Topics/COVID-19 VE Studies

COVID-19 VE Studies

Studies on the effectiveness of COVID-19 vaccines

Fact-Checks

12 results
Jan 12, 2026
Most Viewed

What is the vaccine effectiveness of COVID-19 vaccines?

COVID-19 vaccines have been highly effective at preventing severe disease and death across studies, while protection against infection and symptomatic disease has been lower and wanes over months, esp...

Jan 19, 2026
Most Viewed

How is ivermectin dose calculated by weight for common parasitic infections?

Ivermectin dosing for human parasitic infections is weight-based and generally expressed in micrograms per kilogram (mcg/kg); the usual therapeutic range for common infections is about 150–200 mcg/kg ...

Jan 11, 2026
Most Viewed

What doses and durations qualify as chronic ivermectin use in clinical studies?

Clinical studies that describe "chronic" ivermectin use do not have a single standardized threshold; in the human trials reviewed, most chronic-use patterns meant multi-day or repeated dosing (for exa...

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 17, 2026

What symptoms and treatments exist for ivermectin overdose in humans?

Ivermectin overdose in humans typically produces a mix of gastrointestinal, cardiovascular and neurologic symptoms — nausea, vomiting, diarrhea, low blood pressure, dizziness, ataxia, altered mental s...

Jan 15, 2026

How do biodistribution results for mRNA (BNT162b2/Moderna) differ from adenoviral (Ad26/ChAdOx1) COVID‑19 vaccines in animal studies?

Animal biodistribution studies of mRNA‑LNP and adenoviral COVID‑19 vaccine platforms show different patterns: preclinical data and regulatory summaries indicate mRNA‑LNP signal concentrates at the int...

Jan 15, 2026

Risks of ivermectin misuse in unapproved conditions

Ivermectin is an antiparasitic medicine approved for specific human infections and widely used in veterinary medicine; its safety and dosing are established for those approved indications, not for vir...

Jan 13, 2026

How did early reporting and political statements shape scientific debate about COVID‑19 origins in 2020–2025?

Early news coverage, political statements and social-media dynamics converted a scientific question about SARS‑CoV‑2 origins into a politicized public contest, reshaping which hypotheses were treated ...

Jan 12, 2026

Are there clinical trials testing ivermectin as a treatment for liver fibrosis or NAFLD in humans?

No completed or registered human clinical trials testing ivermectin specifically as a therapy for liver fibrosis or nonalcoholic fatty liver disease (NAFLD) are identified in the provided reporting; t...

Jan 11, 2026

Can taking ivermectin without a prescription lead to antibiotic resistance?

Directly, ivermectin is an anthelmintic (anti‑parasite) drug, not an antibiotic, so taking it without a prescription is unlikely to create bacterial “antibiotic resistance” in the classic sense; howev...

Jan 11, 2026

What clinical trials have tested ivermectin for parasitic infections beyond approved indications?

Clinical research has tested ivermectin beyond its core approvals (onchocerciasis, strongyloidiasis, and topical formulations for rosacea/head lice) in a range of parasitic contexts — notably scabies,...

Jan 9, 2026

What methodological biases should be examined in vaccinated vs. unvaccinated observational studies?

Observational comparisons of vaccinated and unvaccinated populations are fertile ground for misleading conclusions unless a range of methodological biases are actively sought and addressed; the litera...