In a recent podcast episode, Joe Rogan and guest Aaron Rodgers how they say the COVID‑19 vaccine spreads through the body, keeps making spike protein for years, lowers fertility, causes unusual blood clots, heart inflammation and other health problems, and even makes people more likely to get sick despite needing many booster shots.

These claims are based on misconstrued data where scientists tested lipid nanoparticles on rats. These nanoparticles are like tiny packages that hold the mRNA used in the COVID vaccine. The scientists put a special label on these nanoparticles that allowed them to see where they went in the rats’ bodies and how long they stayed there.

When we look at the data, we see that most of the nanoparticles stayed where they were injected, and some went to the liver. Only very tiny amounts, less than 1%, went to other parts of the body, and in most places, it was even less than 0.1%. So, the claim that most of these nanoparticles spread throughout the body is not correct.

The vast majority of mRNA stays near the muscle and breaks down within a day or two. The small amount of spike protein it makes is cleared fast, so it does not build up in other organs or keep churning out years later.

Large real‑world studies on people trying to get pregnant and on thousands of pregnancies show no extra risk for infertility, miscarriage, or problems for the baby after COVID vaccination. Research on couples, IVF clinics, and more than 100,000 pregnancies shows the vaccines are not associated with risks for fertility, pregnancies, or babies, and vaccination actually lowers the risk of severe illness during pregnancy.

Anti-vaccine activists have used prior concerns about a particular type of blood clot associated with adenovirus vector vaccines. mRNA vaccines, like Pfizer-BioNTech and Moderna, have a minimal risk of blood clots, unlike COVID itself, which significantly increases the risk of blood clots and stroke.

Some teens and young adults can get mild myocarditis after an mRNA dose, but most cases clear with rest, and catching COVID is still more likely to hurt the heart than the vaccine. In most people, being vaccinated on shots actually reduced the risk of strokes, heart attacks, and clots.

It turns out that the conspiracy theorists, even the quarterbacks, were incorrect.

A Newsmax report claims that leaders forced people to take COVID shots instead of trusting natural immunity, hid dangers like heart swelling, said the shots would stop the virus when they didn’t, paid doctors extra to give them, and blocked injured people from suing.

Natural immunity only appears after you catch the disease, and that means risking a serious infection or even death. Getting a vaccine teaches your body to fight the virus without making you dangerously sick.

The mRNA COVID shots can rarely cause mild, short‑lived heart swelling, yet heart problems happen more often after a COVID infection itself. Almost everyone who gets vaccine‑related myocarditis recovers quickly. One study did find that rates of myocarditis were higher in males under 40 after vaccination than after COVID infection. The authors of the paper pointed out that COVID-induced myocarditis had a much higher risk of heart failure or death than vaccine-induced myocarditis did. And many studies often explain that the risks of myocarditis from COVID far outweigh the risks of myocarditis from the vaccines.

COVID kills, even young, healthy people. And death isn’t even the only severe outcome of COVID. Long COVID, can impact between 4-25% of children and young adults as well. No vaccine completely prevents every case of COVID, but real‑world studies show the COVID shots cut the chance of hospitalization and death, so they still save lives and slow outbreaks.

Doctors do bill a small fee or sometimes earn a modest quality bonus from insurance companies for vaccinations, but those payments mainly cover supplies and staff time and are nowhere near the big profits anti‑vaccine activists claim.

The Countermeasures Injury Compensation Program (CICP) was developed as a supplementary program based on the 1986 National Childhood Vaccine Injury Act, specifically for public health emergencies, like pandemics. It is a no-fault system for people who believe they were seriously hurt by a vaccine to file for compensation. Manufacturers are shielded from design‑defect lawsuits only if the vaccine is made and labeled correctly, so injured individuals are not left without help.

A viral tweet claims that the MMR vaccine causes measles, citing the package insert as evidence.

Listed in the insert is atypical measles, which is a very rare, serious form of measles in those who had received an older, inactivated form of the vaccine prior to 1967 and was subsequently exposed to measles. We have not seen a case since 1980. These inserts are legal documents, and not medical ones, and since atypical measles was once a very rare side effect, many years ago, it remains in the insert.

The current MMR shot uses a weakened live measles virus (genotype A) that is so mild it cannot make healthy people sick, and scientists can easily tell it apart from the wild strain (currently D8) virus that drives recent outbreaks. To date, there has never been a case of measles resulting from vaccination.

When measles spread this year in Texas and New Mexico, almost every case was in people who were not vaccinated. if the vaccine really caused measles, the opposite pattern would show up, but it never does.

A few vaccinated people may get a brief rash or low fever, and only those with severely weakened immune systems face a very small chance of a vaccine‑related illness, while wild measles regularly causes pneumonia, brain swelling, and even death.

After two doses, the MMR vaccine is about 97% effective against measles, and has helped cut global measles deaths by about 78% since 2000, proving the shot prevents disease instead of causing it.