Comment by wavepruner | Hacker News Reader

Comment by wavepruner | Hacker News Reader

Parent Full thread

"...to a significant portion of the population."

Including health experts:

"...depending on the vaccine formulations used and the weight of the infant, some infants could have been exposed to cumulative levels of mercury during the first six months of life that exceeded EPA recommended guidelines for safe intake of methylmercury. As a precautionary measure, the Public Health Service (including FDA, National Institutes of Health [NIH], Centers for Disease Control and Prevention [CDC] and Health Resources and Services Administration [HRSA]) and the American Academy of Pediatrics issued a Joint Statement, urging vaccine manufacturers to reduce or eliminate thimerosal in vaccines as soon as possible. The U.S. Public Health Service agencies have collaborated with various investigators to initiate further studies to better understand any possible health effects from exposure to thimerosal in vaccines."

https://www.fda.gov/vaccines-blood-biologics/vaccines/thimer...

To this day thimerosal is not included in childhood vaccines, except for some flu shot formulations.

> Data reviewed did not demonstrate convincing evidence of toxicity from doses of thimerosal used in vaccines. In case reports of accidental high-dose exposures in humans to thimerosal or ethyl mercury toxicity was demonstrated only at exposures that were 100 or 1000 times that found in vaccines.

They could just as easily say, "Data reviewed did not demonstrate convincing evidence of safety from doses of thimerosal used in vaccines."

Placebo-controlled, double-blind clinical trials have never been completed to evaluate the safety of thimerosal. Partly because it would be unethical to inject a known toxin into people to determine it's safety.

If these trials had been done, and health authorities were convinced it was safe, they would allow thimerosal in vaccines because it is a huge cost saver. But instead, through the actions they took, they made it clear it is not worth the risk.

As an environmental engineer I've witnessed this tactic over and over. Authorities claim there is no evidence of danger, but remove the toxin anyways, because they know it's danger is plausible, and the funding and time isn't there to prove it one way or the other. Absence of evidence is not evidence of absence.

It's not like they are going to say, "we think we may have poisoned people, so we're removing this toxin." That's a great way to destroy your livelihood, reputation, and invite prosecution.

> Placebo-controlled, double-blind clinical trials have never been completed to evaluate the safety of thimerosal. Partly because it would be unethical to inject a known toxin into people to determine it's safety.

The safety of thimerosal is entirely possible to evaluate. It was in a bunch of childhood vaccines; it now is not. Has there been any demonstrable difference?

> But instead, through the actions they took, they made it clear it is not worth the risk.

Not necessarily. Could just not be worth the fight with the anti-vaxxers spreading bullshit about it. See also: Subway ditching azodicarbonamide because some blogger started a scaremongering movement around it.

"The safety of thimerosal is entirely possible to evaluate. It was in a bunch of childhood vaccines; it now is not. Has there been any demonstrable difference?"

If you don't believe that proper clinical trials are important to evaluate safety then there's not much more I can say. Epidemiological studies are rife with problems and the data can be manipulated to claim almost anything you want.

"Not necessarily. Could just not be worth the fight with the anti-vaxxers spreading bullshit about it. See also: Subway ditching azodicarbonamide because some blogger started a scaremongering movement around it."

Good point, but mercury is one of the most toxic substances known to man, does not break down, and is scientifically proven to bio-accumulate in mammalian tissues and never leave. It was also injected directly into the body, bypassing all the normal biological defenses a compound must go through before entering tissues. Furthermore, people can chose to not eat Subway without consequence. If vaccines had thimerosal in them again, it would be unavoidable without major life changes and being forcibly removed from large swaths of civil society. A consequence so severe necessitates a more proof than just saying you think mercury is safe in small doses with zero supporting concrete evidence.

Thimerosal was removed around 2001, well before the anti-vaxxer movement had enough influence to matter.

Your feelings and weak suppositions about thimerosal in vaccines are not science, and rather just indicate that you want to believe what you want to believe without presenting any concrete evidence.

Reply on news.ycombinator.com