As explained here, that means they disappear from the shot recipients’ bodies within a day or two. Kuritzkes also pointed out that the mRNA vaccines are degraded within 24 to 48 hours. Likewise, the Johnson & Johnson (also referred to as Janssen) vaccine “is based on a replication-defective adenovirus, which means the adenovirus is incapable of reproducing,” he added.Īs Reuters explained here the Pfizer-BioNTech and Moderna COVID-19 vaccines use a chemical messenger, or mRNA, to tell people’s cells to make “make proteins that mimic the outer surface of SARS-CoV-2 (the virus that causes COVID-19)…without replicating like the actual virus.” Meanwhile, the J&J vaccine uses a “weakened version of a harmless adenovirus to deliver instructions to cells to make coronavirus spike proteins” that also cannot replicate, as Reuters reported here. ![]() The mRNA vaccines “contain only instructions for making spike protein and are incapable of generating virus particles, so nothing can be shed,” said Dr Daniel Kuritzkes, chief of the infectious diseases division at Brigham and Women’s Hospital, one of the world’s top teaching hospitals and part of Harvard Medical School, in a statement emailed to Reuters. Many of the false posts attribute the “shedding” of vaccines to a “spike protein” in an apparent misunderstanding of how the vaccines work. Therefore, people who receive a COVID-19 vaccine cannot shed the virus or the vaccine.” The team also stated the vaccines cannot cause people to shed the COVID-19 virus, echoing all the other experts Reuters spoke to, saying “COVID-19 vaccines do not use the live virus that causes COVID-19 and cannot cause COVID-19. The immune response, which produces antibodies, is what protects us from getting infected if the real virus enters our bodies.” After the protein piece is made, the cell breaks down the instructions and gets rid of them. “COVID-19 vaccines give instructions to teach our cells how to make a protein-or even just a piece of a protein-that triggers an immune response inside our bodies. ![]() “There is no way for a COVID-19 vaccinated person to “shed vaccine,” the Centers for Disease Control’s COVID-19 Clinical Team said in an email responding to Reuters questions. Scientists measure “viral shedding” to try to pinpoint at what point sick people are the most infectious ( here ). The term “shed” was used frequently in the early days of the pandemic to describe people transmitting or emitting coronavirus particles. Researchers are currently investigating the anecdotes, and at this time Reuters cannot assess the validity of the claims. Many posts also state that receiving vaccine shots can interfere with menstruation, citing anecdotes about women who have been vaccinated. ![]() Posts such as those found here, here, here, here, and here falsely claim that vaccine “shedding” may cause a variety of reproductive problems and that women should avoid associating with vaccinated people. organization for medical professionals in women’s healthcare.Ĭalling the vaccines “our single best tool for confronting a global pandemic that has taken 600,000 lives in this country alone,” Zahn added in a statement emailed to Reuters that “such conspiracies and false narratives are dangerous and have nothing to do with science.” “This is a conspiracy that has been created to weaken trust in a series of vaccines that have been demonstrated in clinical trials to be safe and effective,” said Dr Christopher Zahn, Vice President for Practice Activities at the American College of Obstetricians and Gynecologists, the leading U.S. Top medical experts agree that it is impossible for a person to transmit the vaccines to people they happen to be near and for a woman to experience miscarriage, menstrual cycle changes, and other reproductive problems by being around a vaccinated person. ![]() False claims that the coronavirus vaccines can be passed – or “shed” – from an immunized person to an unvaccinated woman and then somehow affect the woman’s reproductive system are whipping around social media.
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