Myocarditis

Do social media posts share the real side effects of Pfizer's COVID-19 vaccine as of January 2025? No, that's not true: The post lists 'adverse events of special interest' that researchers are required to report if they happen during drug trials, it is not a list of things that actually were observed. The most common side effects are feeling tired,…

Did the Cleveland Clinic say widespread use of mRNA COVID-19 vaccine will cause a wave of "mass deaths" within the next five years? No, that's not true: The medical center issued no such warning. A spokesperson for the Cleveland Clinic told Lead Stories there is no scientific basis for the claim that the COVID-19 vaccine will lead to myocarditis and…

Does the listing of "Pneumonia mycoplasma" in Pfizer's guidance on adverse event reports associated with its COVID-19 vaccine prove that the shot caused a respiratory outbreak in China? No, that's not true: It's a fundamental misreading of standard vaccine documents, which direct doctors to rapidly report any problems from a long list as a precaution. The Centers for Disease Control…

Did Dr. Peter McCullough, an American cardiologist who has repeatedly made anti-COVID-19 vaccine statements, successfully discredit the World Health Organization (WHO) and the global health community's approach to COVID-19 treatment during a speech in Strasbourg, France, on September 13, 2023? No, that's not true: McCullough bases his claims on rejected scientific papers with methodological flaws and long-debunked assertions. The physician…

Did 850 deaths occur in two weeks in Monterrey, a city in the Mexican state of Nuevo León, that were caused by myocarditis? No, that's not true: The increased number of deaths in Mexico during June 2023 occurred during a heat wave, and it wasn't 850 deaths. Myocarditis is a term for the inflammation of the heart muscle and is…

Did RT, a Russian state news organization, publish a headline saying that the plane whose crash killed Yevgheny Prigozhin was piloted by a person suffering "post-vaccine myocarditis"? No, that's not true: There is no evidence that RT ever published such a story about the August 23, 2023, plane crash that killed Yevgeny Prigozhin, leader of the Wagner group, a Russian…

Does the German government have study figures that show people given the Pfizer COVID-19 vaccine (Comirnaty) "have overall suffered from fewer medically undesirable events as subjects who received the placebo"? No, that's not true: As of August 4, 2023, Germany's Federal Ministry of Health said it did not have "such figures." But not having such study figures proves nothing in…

Does data collected from the Vaccine Adverse Event Reporting System (VAERS) prove that COVID-19 vaccines are "killing an estimated 1 person per 1,000 doses," resulting in "676,000 dead Americans"? No, that's not true: The claim originated in a blog post by a known COVID misinformation spreader who used VAERS data in ways that medical experts have explicitly advised against. As…

Did one in every 35 people who received a Moderna COVID-19 mRNA-1273 booster vaccination suffer myocardial injury? No, that's not true: There is no reliable evidence or data to support this claim. Such a high rate of adverse reactions would be highly unusual and would likely have resulted in widespread concern and investigation. The authors of the study cited to…

Did the Centers for Disease Control and Prevention (CDC) say that AIDS-associated diseases and cancers have increased by 338 times since the rollout of the COVID-19 vaccine? No, that's not true: The CDC says there are no indications that COVID vaccines are causing or contributing to these conditions. The public health agency regularly monitors and reports on health conditions including…