An abundance of evidence indicates the mRNA COVID-19 vaccines are remarkably safe and work well to protect against severe disease. But last month, the state of Florida issued updated vaccine guidance advising “against the use” of the shots entirely — even for people who are older and at higher risk of severe disease. Experts say the advice is ill-informed and “illogical.”
Updated COVID-19 vaccines targeting JN.1-lineage omicron variants of the coronavirus are now available in the U.S. for the fall and winter seasons. Here we answer common questions about the latest vaccines.
Responding to rising mpox cases in Africa, the World Health Organization declared a public health emergency of international concern on Aug. 14. Social media posts subsequently repeated a plethora of false or baseless claims, including that COVID-19 vaccines cause the viral disease or that the current outbreak is part of a global conspiracy.
COVID-19 vaccination is generally very safe, and except for extremely rare cases, there is no evidence that it contributes to death. Social media posts about a now-published, but faulty review of autopsy reports, however, are repeating an unfounded claim from last summer that “74% of sudden deaths are shown to be due to the COVID-19 vaccine.”
A federal appeals court has revived a lawsuit against the Los Angeles Unified School District for its now-rescinded COVID-19 vaccine requirement. The court said the case should be allowed to develop beyond the preliminary arguments. But anti-vaccination activists have twisted the opinion to falsely claim the court had “declared that the mRNA covid jab is NOT a vaccine.”
A rare risk of dangerous blood clots associated with the AstraZeneca COVID-19 vaccine was identified and reported in early 2021. This month, the company announced it was pulling the vaccine off the market globally, citing a decline in demand. Social media posts misleadingly linked the decision to the company having “admitted” the rare side effect “for the first time” in court documents and used it to impugn all vaccines.
A recent video promoting independent presidential candidate Robert F. Kennedy Jr. promises to “start with some irrefutable facts.” The over 30-minute video, narrated by actor Woody Harrelson, begins with some biographical truths about the candidate, but veers into promoting various debunked or unsupported narratives about vaccines.
It has not been shown that COVID-19 vaccines cause or accelerate cancer. Yet opponents of the vaccines say a new review article “has found that COVID-19 mRNA vaccines could aid cancer development.” The review conclusions are mainly based on the misinterpretation of a study on mRNA cancer vaccines in mice.
While the risks associated with COVID-19 generally have decreased over time due to prior exposure to the vaccines and the virus, some people remain at elevated risk, such as the elderly and immunocompromised. The updated COVID-19 vaccines and, in some cases, a new monoclonal antibody can provide increased protection for this group.
O.J. Simpson, a football star who was acquitted in the murder of his ex-wife and her friend, died of cancer on April 10 at age 76. Misinformation spread online within hours of the news. Social media posts falsely claimed that the cancer was related to his COVID-19 vaccination. Simpson was vaccinated, but there is no evidence that vaccination causes cancer or that it was to blame for his death.