Physician-scientist, BC NBPAS, NYT bestselling author, media commentator, Chief Scientific Officer, Wellness Company, President, McCullough® Foundation
Richardson, TX, USA
Joined November 2021
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Peter A. McCullough, MD, MPH® retweeted
Ten athletes made headlines in just three weeks.
Blood clots. Cardiac emergencies. Cancer. Sudden deaths. A heart transplant.
Different athletes, different circumstances, and some questions that remain unanswered.
Peter A. McCullough, MD, MPH® retweeted
Unbelievable ... 😡😡😡
The CDC tracked 10M Americans after each COVID shot. 7.7% reported needing medical care. 81% of US adults took at least 1 shot. Millions of Americans deserve answers:
Where's the follow-up?
Where’s the transparency?
Who's being held accountable?
From @P_McCulloughMD:
Peter A. McCullough, MD, MPH® retweeted
Jim Cramer silent now on Covid vaccines thefocalpoints.com/p/buy-buy…
Peter A. McCullough, MD, MPH® retweeted
COVID Causes Blood Clots. That Isn’t Controversial — Except, Apparently, at the Bedside.
Thrombosis after SARS-CoV-2 infection has been in the peer-reviewed literature SINCE 2020. Textbook, not fringe. And patients who had COVID and then threw major clots report being told by major institutions the infection had NOTHING TO DO WITH IT. Not “uncertain.” Not “possibly.” Flatly ruled out, with nothing offered instead. That’s not caution. That’s declining to think. @stinchfield1776
#MedicalFreedom
Peter A. McCullough, MD, MPH® retweeted
“NATURAL CAUSES” — OR ARE WE MISSING SOMETHING?
Why are healthy young people and professional athletes experiencing blood clots and premature deaths?
“So if someone takes the vaccine and they're producing tons of spike protein, but the antibodies are perfectly neutralizing it, they're gonna be fine.
They can have a very high antibody tighter, but they'll be fine.
But if the antibodies begin to switch to less neutralizing antibodies, I think this happened in Jalen Hertz, then the spike protein can roam free, cause blood clause, heart damage, stroke, and all kinds of problems.”
Dr. Peter McCullough joins Grant Stinchfield to discuss:
• Jalen Hurts, Deion Sanders, Damar Hamlin & more
• COVID vaccines, spike protein & blood clots
• mRNA cancer vaccines
• Peptides, testosterone & healthy aging
WATCH the full interview with @P_McCulloughMD and @stinchfield1776:
Peter A. McCullough, MD, MPH® retweeted
CLEVELAND CLINIC STUDY: Flu Vaccination Linked to a 27% INCREASED RISK OF FLU
Among 53,402 healthcare workers, vaccinated employees were significantly MORE LIKELY to contract flu than the unvaccinated.
Flu vaccines are a MAJOR SCAM.
Peter A. McCullough, MD, MPH® retweeted
The Problem May Be the Processing, Not the Food
Phthalates — plasticizers with DOCUMENTED ENDOCRINE ACTIVITY — leach into food from processing equipment, tubing, gloves and packaging. Measured exposure in people tracks with HOW PROCESSED THEIR DIET IS. That’s a separate question from the ingredient list. And ultra-processed food drives the obesity that suppresses testosterone directly. Two mechanisms, same supply chain. @jsolomonReports @AmandaHead @RealAmVoice
#MedicalFreedom
Peter A. McCullough, MD, MPH® retweeted
What does a law passed 40 years ago have to do with vaccine safety today?
Dr. Mary Talley Bowden explains the connection in three minutes.
Watch the full video.
Then decide whether you agree that Congress should repeal the 1986 law.
Link: vacsafety.org/petition-repea…
#InformedConsent #MedicalFreedom #VaccineInjury
Peter A. McCullough, MD, MPH® retweeted
Olivia Munn had a normal mammogram. She had also tested negative for BRCA and other cancer-related gene mutations. But her doctor went one step further and calculated her lifetime breast cancer risk.
Her score came back at about 37.3%.
That result led to additional imaging — an MRI, followed by an ultrasound and biopsy — which ultimately revealed breast cancer in both breasts. Munn has since credited that risk assessment with helping lead to her diagnosis.
Tools such as the Tyrer-Cuzick model estimate breast cancer risk using factors beyond a mammogram, including family history, age, reproductive history, breast density, and other personal risk factors.
A screening test tells you what can be seen today. A risk assessment asks a different question: how closely should we be looking in the first place?
Peter A. McCullough, MD, MPH® retweeted
In my speech in Parliament this afternoon, I argue that those who forced the COVID vaccine on our healthy population must finally be held accountable.
Peter A. McCullough, MD, MPH® retweeted
🧬 New @McCulloughFund report | 5/6
Beyond killing cancer cells directly, ivermectin and mebendazole may also help the immune system find and attack them, from two different sides. 👇
🔹Ivermectin (mouse breast tumors): triggers immunogenic cell death, draws in T cells, and depletes MDSCs and regulatory T cells
🔹 Mebendazole: activates innate immunity, shifting macrophages into tumor-fighting (M1) mode and boosting natural killer cell activity
🔹 Together they could engage both arms of antitumor immunity.
The @McCulloughFund just released the most comprehensive review to date on the anticancer mechanisms of ivermectin and mebendazole.
Let’s break down one group of mechanisms at a time.
Resistance and Dissemination
🔸One of the biggest problems with chemotherapy is the fact that cancer cells can become resistant to the treatment and continue to spread
🔸Ivermectin and Mebendazole fights both problems. They turn off the pumps that "spit" chemotherapy out of the cell, shrink the population of the toughest “stem-like” cancer cells, cut off the blood vessels that feed new tumors, and make the remaining cancer cells more sensitive to regular chemo.
🔸They also slow down the ways cancer invades nearby tissue and spreads to other organs by:
🔹Suppressing the Wnt/β-catenin–integrin β1/focal adhesion kinase (FAK) pathway
🔹Inhibiting epithelial–mesenchymal transition (EMT)
🔹Blocking neutrophil extracellular trap (NET) formation by binding gasdermin D
@twc_health @YaleSPH @AmericanCancer
Peter A. McCullough, MD, MPH® retweeted
I just reviewed the DEFUSE proposal, and to my astonishment, Baric and Shi do NOT once mention RaTG13 in the document.
In my twenty years of doing true crime investigations, I have often found that what is omitted from documents often speaks louder than what is included in them.
Given that it was almost certainly Baric who wrote the technical language in the DEFUSE proposal, it strikes me as very strange that he didn’t once mention RaTG13 as a shining example of a SARS Bat Coronavirus of concern for the work he proposed. It was a naturally occurring virus with some affinity to the human ACE-2 receptor, found in a mine in which 6 men had fallen ill with pneumonia.
Jim Haslam has raised the suspicion that Shi published the RaTG13 genome (closely related to SARS-CoV-2, only without the decisively import furin cleavage site) as a insider’s message to Baric—something along the lines of, “My team at the WIV did NOT insert the furin cleavage site, so don’t even think about blaming us.”
open.substack.com/pub/peterm…
Intriguing Omission in SARS-CoV-2 Paper Trail
Why didn’t Ralph Baric & Shi Zhengli mention RaTG13 in their 2018 DEFUSE proposal? By John Leake URL TheFocalPoints. @johnsearsleake @jhas5 @McCulloughFund @Baric_Lab
Peter A. McCullough, MD, MPH® retweeted
UPDATE: The controversial U.S.-backed hepatitis B vaccine trial involving 14,000 newborns in Guinea-Bissau will not move forward.
The $3.2 million study, which we previously covered, faced international scrutiny over its design and the ethics of delaying vaccination for some infants.
Now, lead researcher Frederik Schaltz-Buchholzer has confirmed that the trial will not proceed after the team failed to secure the necessary government approval.
The decision follows months of controversy surrounding the proposed research.
Peter A. McCullough, MD, MPH® retweeted
Professor Karina Acevedo-Whitehouse points to some extremely concerning preliminary results.
SV40 promoter sequence was found in DNA isolated from sperm of men who received the Pfizer shot, including men COVID "vaccinated" at least two years earlier.
This raises serious questions about possible effects on the next generation.
Peter A. McCullough, MD, MPH® retweeted
18/09/26
Young girl with life threatening Myocarditis requiring prolonged hospitalisation one day after the Pfizer Tozinameran mRNA vaccine.
Recorded by healthcare professional
Peter A. McCullough, MD, MPH® retweeted
Sweden opts for coronavirus protein vaccine instead of mRNA
From the 2027/2028 season onwards, Sweden will use only a protein-based coronavirus vaccine for its national vaccination campaign. It is the first country in the world to say goodbye to the mRNA vaccines.
Difference in technology
Nuvaxovid is a classic protein vaccine. It contains a ready-made piece of the virus (the spike protein), produced using recombinant technology (a molecular method in which DNA from different organisms is combined in the laboratory and placed into a host cell (such as a bacterium or yeast) to allow it to multiply or produce proteins) and provided with an adjuvant (an excipient that stimulates and strengthens the body's immune response to the antigen, so that the vaccine works better). The body is presented with this protein directly to build an immune response. This differs from mRNA vaccines (such as Comirnaty from Pfizer/BioNTech), where the body's cells must produce the spike protein themselves after receiving the mRNA instruction. This process carries the risk of autoimmune reactions, especially because these products do not remain at the injection site but can spread throughout the body. Furthermore, the quantity and duration of spike protein production are not defined in the mRNA technique. In addition, the lipid coating of the mRNA vaccines is very reactive. All in all, this leads to a disproportionate number of side effects, some very serious and resulting in death (1-3).
Sweden chose its own path during the coronavirus years by not enforcing lockdowns or school closures. Although there was much criticism of this at the time, the Swedish approach was later appreciated ( De Morgen, 25 December 2023 ).
With the decision to phase out coronavirus mRNA vaccines, Sweden appears set to play a pioneering role once again. The Doctors' Collective, together with European partners, has been advocating for the cessation of mRNA vaccinations for quite some time.
Sources: Sanofi press release (April 21, 2026), LäkemedelsVärlden report and Läkemedelsmarknaden report regarding the tender.
References
Cappelletti-Montano B, Demuru G, Laconi E and Musio M (2023) A comparative analysis on serious adverse events reported for COVID-19 vaccines in adolescents and young adults. Front. Public Health 11:1145645. doi: 10.3389/fpubh.2023.1145645
Szebeni, J. Expanded Spectrum and Increased Incidence of Adverse Events Linked to COVID-19 Genetic Vaccines: New Concepts on Prophylactic Immuno-Gene Therapy, Iatrogenic Orphan Disease, and Platform-Inherent Challenges. Pharmaceutics 2025, 17, 450.
Fraiman J, Erviti J, Jones M, Greenland S, Whelan P, Kaplan RM, Doshi P. Serious adverse events of special interest following mRNA COVID-19 vaccination in randomized trials in adults. Vaccine. 2022 Sep 22;40(40):5798-5805. doi: 10.1016/j.vaccine.2022.08.036. Epub 2022 Aug 31. PMID: 36055877; PMCID: PMC9428332.
artsencollectief.nl/zweden-k…
Peter A. McCullough, MD, MPH® retweeted
🧬 New @McCulloughFund report | 4/6
Cancer cells survive DNA damage by repairing it, and that repair happens inside the nucleus.
Ivermectin and mebendazole both cut off that repair, in completely different ways. 👇
Nuclear Transport and DNA Damage
🔹Ivermectin blocks a main doorway into the nucleus (importin α/β) and keeps key cancer proteins from getting where they need to go
🔹Also impairs DNA repair by targeting Ku70/Ku80
🔹Mebendazole stops DNA-repair proteins from reaching the nucleus
🔹Shared result: more DNA damage, reached by completely different mechanisms
The @McCulloughFund just released the most comprehensive review to date on the anticancer mechanisms of ivermectin and mebendazole.
Let’s break down one group of mechanisms at a time.
Resistance and Dissemination
🔸One of the biggest problems with chemotherapy is the fact that cancer cells can become resistant to the treatment and continue to spread
🔸Ivermectin and Mebendazole fights both problems. They turn off the pumps that "spit" chemotherapy out of the cell, shrink the population of the toughest “stem-like” cancer cells, cut off the blood vessels that feed new tumors, and make the remaining cancer cells more sensitive to regular chemo.
🔸They also slow down the ways cancer invades nearby tissue and spreads to other organs by:
🔹Suppressing the Wnt/β-catenin–integrin β1/focal adhesion kinase (FAK) pathway
🔹Inhibiting epithelial–mesenchymal transition (EMT)
🔹Blocking neutrophil extracellular trap (NET) formation by binding gasdermin D
@twc_health @YaleSPH @AmericanCancer
Peter A. McCullough, MD, MPH® retweeted
Dr. Peter McCullough makes a controversial claim about nicotine and COVID-19 while speaking with Theo Von, arguing that nicotine may help block the virus’s spike protein.
But don’t take this clip as medical advice. The evidence does not establish nicotine as a safe or effective COVID-19 treatment, and nicotine itself is addictive.
Peter A. McCullough, MD, MPH® retweeted
“87% AND 76% INCREASES” — WHAT DID ONTARIO’S DATA SHOW?
During her second appearance at the Allison Inquiry on September 11, 2026, independent research analyst Deanna McLeod examined Ontario health data and challenged the characterization of Covid-19 vaccine-associated myocarditis as “rare and transient.”
In this clip, McLeod presents data showing increases of 87% and 76% in reported myocarditis-related event rates across two diagnostic groupings, comparing 2021 figures with historical trends from 2015–2019. She also reviews the timeline of vaccine authorization, emerging cardiac safety signals, and the studies used to assess myocarditis and pericarditis risks.
Her presentation raises important questions about how safety signals were monitored, how emerging evidence was weighed against early clinical trial data, and whether post-market surveillance was sufficient to identify potential risks.
When new safety signals emerge, how thoroughly are they investigated — and how transparently are the findings communicated to the public?
Watch Deanna McLeod’s second appearance at the Allison Inquiry, recorded September 11, 2026.
Watch the full testimony:
covidtestimony.com/witnesses…
@DeanAllisonMP
@Shawnbuckleylaw