Index/Organizations/Yale Medicine

Yale Medicine

Fact-Checks

28 results
Nov 19, 2025
Most Viewed

Do mRNA and non-mRNA 2025 COVID-19 boosters differ in side-effect profiles across ages?

Available reporting shows both 2024–25/2025 updated mRNA boosters (Pfizer, Moderna) and a protein‑subunit booster (Novavax/Nuvaxovid) were offered and monitored for safety; several studies and news an...

Dec 7, 2025
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How do vaccine ingredient lists compare between original COVID-19 mRNA vaccines (2020–2021) and updated bivalent or variant-specific formulations (2022–2024)?

Original mRNA COVID-19 vaccines (Pfizer-BioNTech, Moderna) introduced in late 2020 used lipid nanoparticle-formulated mRNA and a short list of excipients; later updates from 2022–2024 shifted only the...

Nov 27, 2025
Most Viewed

How long do mRNA COVID-19 vaccine side effects typically last after each dose and boosters?

Most reporting and public-health guidance in the provided sources say mRNA COVID-19 vaccine side effects are usually short-lived and mostly mild — commonly a sore arm, fatigue, headache and muscle ach...

Dec 19, 2025

How long do booster shot side effects typically last compared with primary series reactions?

Real-world surveillance and public health guidance indicate that side effects after COVID-19 booster doses are generally similar in type and duration to those experienced after the original primary se...

Jan 15, 2026

Has Yale or Dr. Ania Jastreboff publicly commented on or debunked the pink salt trick?

Yale Medicine and Dr. Ania M. Jastreboff have publicly stated that the viral “pink salt trick” for weight loss is not medically supported and has no connection to her or Yale, and Yale’s specialist pr...

Nov 19, 2025

Does the Janssen COVID vaccine integrate into human DNA or leave lasting genetic material?

The Janssen (Johnson & Johnson) COVID-19 vaccine uses a non-replicating adenovirus vector that delivers double‑stranded DNA encoding the SARS‑CoV‑2 spike protein into cells; public health and medical ...

Nov 16, 2025

What are the most common causes of rectal bleeding and how do they present differently?

Rectal bleeding most commonly stems from benign anorectal causes — especially hemorrhoids and anal fissures — but can also reflect inflammatory bowel disease, diverticular disease, or colorectal cance...

Nov 15, 2025

What are the most common complications after penile implant surgery and how often do they occur?

In modern series, infection is the single most feared complication after penile implant surgery but is uncommon: typical contemporary estimates range around 1–3% for primary implants (University of Ut...

Dec 6, 2025

What are observed differences in side effects and safety profiles between mRNA and protein COVID-19 boosters?

mRNA boosters commonly produce transient local and systemic reactions — injection-site pain, fatigue, headache, muscle aches — and have been linked to rare myocarditis/pericarditis cases (for example ...

Dec 20, 2025

Have independent sources or medical experts commented on the accuracy of Trump's 2024/2025 height and weight listing?

The White House physician publicly reported President Donald Trump’s height as 75 inches (6'3") and weight as 224 pounds after his April 11, 2025, Walter Reed exam, and major news organizations publis...

Dec 11, 2025

How do side effects of 2024-2025 COVID vaccines compare to earlier mRNA COVID boosters?

Updated 2024–2025 COVID vaccines produce the same common, short-lived reactions—sore arm, fatigue, headache, muscle pain, fever—as earlier mRNA boosters, and serious adverse events remain rare; large ...

Nov 26, 2025

What are the full ingredient lists for Moderna and Janssen COVID-19 vaccines and how do they differ from Pfizer's?

You asked for the full ingredient lists for Moderna and Janssen COVID‑19 vaccines and how they differ from Pfizer’s; available reporting in the provided sources discusses vaccine brands, approvals, an...

Nov 12, 2025

What are the most reported side effects for 2024-2025 COVID vaccines in adults over 65?

The available analyses converge on a clear finding: . Serious adverse events are described as across the reviewed materials . Across the collected analyses, the dominant claim is that are the most fre...

Dec 17, 2025

What are the core principles and recommended foods of the Burn Peak diet by Dr. Ania Jastreboff?

There is no credible, evidence-based "Burn Peak" diet authored or recommended by Dr. Ania Jastreboff; the viral program and its “pink salt” recipe have been identified in multiple reports as marketing...

Dec 13, 2025

How does the covid vaccine affect women over 65 with pre-existing medical conditions?

COVID vaccines continue to reduce risk of severe illness, hospitalization and death for adults 65+ and for younger people with high‑risk conditions; agencies recommend 1–2 doses for older or immunocom...

Dec 6, 2025

Do mRNA or protein-based COVID-19 boosters provide better protection against severe disease over time?

Recent real‑world evidence and reviews show mRNA boosters generally produce higher estimates of protection against hospitalization in older adults than studies that mixed mRNA and protein‑based booste...

Nov 30, 2025

Are hospitalization and emergency visit rates higher after mRNA boosters compared with protein-based boosters across pediatric, adult, and elderly groups?

Available studies and public-health reviews show mRNA boosters reduce hospitalizations and emergency visits compared with being unboosted, particularly in older adults; head‑to‑head comparisons betwee...

Nov 28, 2025

What are the typical short-term side effects after Pfizer-BioNTech versus Moderna mRNA COVID-19 vaccines?

Short-term side effects after Pfizer-BioNTech (Comirnaty) and Moderna (Spikevax / mNEXSPIKE) mRNA COVID-19 vaccines are generally similar: local reactions (pain at the injection site) and systemic rea...

Nov 28, 2025

What side effects are common after Pfizer-BioNTech vs Moderna mRNA COVID-19 vaccines?

Both Pfizer‑BioNTech (Comirnaty) and Moderna (Spikevax and related Moderna mRNA products) use the same mRNA technology and in clinical trials showed similar high efficacy initially, and both commonly ...

Nov 27, 2025

How does the risk of long COVID compare to post-vaccine adverse events by age, sex, and comorbidity status?

Available reporting emphasizes that COVID-19 vaccination reduces risk of severe illness, hospitalization and likely reduces risk of long COVID by preventing infection, while most documented vaccine re...