Social media videos of COVID-19 vaccinated people sticking coins and refrigerator magnets to their arms have been spreading a popular conspiracy that the coronavirus shots contain microchips or other metals supposedly used by the government to track Americans.

But instead of facts, all these people have are oily arms and some tape, experts say.

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“No. Receiving a COVID-19 vaccine will not make you magnetic, including at the site of vaccination which is usually your arm,” because they are all free of “metals such as iron, nickel, cobalt, lithium, and rare earth alloys, as well as any manufactured products such as microelectronics, electrodes, carbon nanotubes, and nanowire semiconductors” that can create an electromagnetic field, the Centers for Disease Control and Prevention said in an update last week.

“In addition, the typical dose for a COVID-19 vaccine is less than a milliliter,” the agency said, “which is not enough to allow magnets to be attracted to your vaccination site even if the vaccine was filled with a magnetic metal.”

Read more at San Luis Obispo.