In an interview with Sean Hannity, HHS Secretary Robert Kennedy Jr. claims that the measles vaccine’s protection fades over time, doesn’t provide infants immunity from their mothers, and can cause severe side effects, suggesting that getting measles naturally might be safer and more effective.

This claim relies on thinking that getting measles naturally gives you stronger, lifelong protection, while the vaccine only gives weak immunity that fades away. But that’s not how immunity really works. When you get a vaccine, your body safely learns to recognize the virus without making you sick. Even if the protection from the vaccine weakens over time, your immune system still remembers the virus using special  memory cells. These memory cells usually remain in your body for your entire life, able to respond quickly and protect you from measles if you’re ever exposed.

This is why, in the current outbreak, the vast, vast majority of those infected with measles are unvaccinated (277 unvaccinated vs 2 vaccinated), despite most adults born after 1963 only receiving an MMR vaccine many years ago. Had protection actually waned, we’d see many more vaccinated people infected.

He also suggests that measles isn’t dangerous and that the case fatality rate is low. While acute fatality is around 1-3 in 1,000, death is not the only metric that makes measles dangerous. One in twenty will get pneumonia, and 1 in 5 unvaccinated people who get measles will be hospitalized.

The measles vaccine is both safe and effective, with millions of doses given annually.

On the Jimmy Dore Show, American comedian Kurt Metzger claims COVID vaccines weaken the immune system, causing increases in breast cancer as well as autoimmune diseases and heart and brain disorders.

Claims linking vaccines to cancer, including rising breast cancer rates, aren’t supported by science. Breast cancer cases in younger women had already been increasing long before COVID vaccines became available. Scientists believe these rising numbers result from lifestyle factors, genetics, and better screening rather than vaccines.

This video tries to show that the COVID vaccine causes breast cancer but offers no evidence. The argument also falls apart when they point out that rates of breast cancer in the UK surpass that of the US (not true), yet their COVID vaccine rates were similar.

They quote Ryan Cole, a doctor who lost his license to practice primary care medicine in Washington State because he made false and misleading statements about COVID. He claims that a journal-published paper showed that mRNA vaccines caused cancer and autoimmune issues. However, the lead author of that paper states that there is no evidence for these claims.

A tweet claims former CDC director Dr. Robert Redfield has confirmed that Long-COVID is mRNA vaccine injury.

Long COVID was first experienced in Spring 2020, long before the first vaccines were in use.

Also, Dr. Redfield himself never said vaccines cause Long COVID. Long COVID happens after someone gets infected with the real virus that causes COVID. The virus can damage your lungs, heart, and blood vessels and cause swelling or tiny blood clots that damage your body. Sometimes the body’s immune system stays active, causing you to feel tired or have trouble thinking clearly long after the infection ends.

Dr. Robert Redfield has discussed some rare cases where patients had symptoms similar to Long COVID after getting an mRNA vaccine. But he has also explained that this isn’t Long COVID—just something similar in a very small group of people. He has also clearly stated that vaccines aren’t poison and have saved millions of lives.

In fact, scientific studies show vaccinated people are much less likely to develop Long COVID.