All topics

Vaccines & public health

Shots, side effects, and trust.

“The COVID vaccine killed more people than COVID.”

"Your relative is claiming that COVID vaccines caused more deaths than COVID itself."

What's actually true

The evidence does not support that claim: COVID has killed more than a million people in the United States alone, and vaccination substantially reduced the risk of severe illness and death. COVID vaccines can have serious side effects, and rare vaccine-caused deaths have been documented, particularly from the clotting syndrome associated with the Johnson & Johnson vaccine. But reports of deaths after vaccination are not the same as deaths caused by vaccination; the VAERS reporting system accepts reports even when the cause is uncertain.

Where they have a point

Vaccine injuries are real, and people affected deserve care and honest acknowledgment. It is reasonable to expect officials to investigate safety problems and explain risks clearly.

Say this (15 seconds)

Rare vaccine deaths did happen, and those matter. But COVID killed more than a million Americans. A death reported after a shot doesn’t establish that the shot caused it—the evidence doesn’t support that comparison.

Then ask

Do you remember where that number came from, and how they determined the vaccine caused those deaths?

Sources

Pass the gravy (exit line)

We can look at the source together later. For now, who’s ready for pie?

“Vaccines cause autism.”

"Your relative believes vaccination can cause autism."

What's actually true

Large studies have found no evidence that vaccines cause autism, including research on the MMR vaccine and the preservative thimerosal. The original paper that fueled the MMR claim was retracted because of serious ethical and scientific problems. Autism signs often become noticeable around the ages children receive routine vaccines, but timing alone doesn’t establish a cause.

Where they have a point

Wanting clear answers about what goes into a child’s body is reasonable. Vaccines can have side effects, and rare serious reactions deserve honest discussion—but autism is not an established vaccine side effect.

Say this (15 seconds)

I get why that would worry you. Researchers have studied this in very large groups of children, and vaccines don’t increase autism risk. Vaccine safety matters—that’s why those studies matter, too.

Then ask

What first made that connection seem convincing to you?

Sources

Pass the gravy (exit line)

We both want the kids healthy. Let’s give the medical debate a rest—who’s ready for pie?

“Fluoride in the water is poisoning us.”

"Your relative is concerned that fluoride added to drinking water is harmful rather than protective."

What's actually true

Fluoride can be harmful at excessive doses, but that doesn’t mean water fluoridated at recommended levels is poisoning people. The U.S. recommended level is 0.7 milligrams per liter, intended to reduce cavities while limiting risks such as dental fluorosis—changes in tooth enamel during development. A 2024 National Toxicology Program review found that higher fluoride exposure, such as drinking water above 1.5 milligrams per liter, is associated with lower IQ in children. It found insufficient evidence to determine whether the recommended 0.7 level negatively affects children’s IQ; an association at higher exposure does not establish harm at that lower level.

Where they have a point

It’s reasonable to want strong evidence and oversight for something added to everyone’s water, especially when children are exposed. The findings at higher exposures deserve attention, not dismissal.

Say this (15 seconds)

Too much fluoride can be harmful—that part is real. But the amount matters. Research raising concerns about children’s IQ mainly involves higher exposure; it doesn’t establish that our recommended water level is poisoning people.

Then ask

Do you know how much fluoride is in our local water, and how that compares with the levels in the research?

Sources

Pass the gravy (exit line)

We can check the local water report later. For now, who wants more potatoes?