3 ms·

A stationary heart valve (and other implants) will "lose" particles due to ware over time.

• criticaltinker 5y ago
  Can you provide any citation supporting this claim? Are there longitudinal studies proving that these particles do not pose a health risk?
  • darig 5y ago
    You need a citation for the existence of entropy? lol
  • FredPret 5y ago
    Any material is going to wear out over time if a liquid continuously runs over it. The worn-out particles have to go somewhere
  • JoeAltmaier 5y ago
    They're not going to be used. So no health problem. Is there any point in banging on about it?
    • panny 5y ago
      >About 500,000 people have received shots from the three suspended Moderna batches
• spoonjim 5y ago
  Of course, but those particles will be vastly smaller than any burrs from a machine.