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Herd immunity occurs only via vaccination - W.H.O. Oct 2020

WHO Changes Definition of Herd Immunity Mercola Jan 2021

WHO June 2020
"“Herd immunity is the indirect protection from an infectious disease that happens when a population is immune either through vaccination or immunity developed through previous infection.”"

WHO Oct 2020

  • “‘Herd immunity’, also known as ‘population immunity’, is a concept used for vaccination, in which a population can be protected from a certain virus if a threshold of vaccination is reached. Herd immunity is achieved by protecting people from a virus, not by exposing them to it.
  • Vaccines train our immune systems to create proteins that fight disease, known as ‘antibodies’, just as would happen when we are exposed to a disease but – crucially – vaccines work without making us sick. Vaccinated people are protected from getting the disease in question and passing it on, breaking any chains of transmission.”

W.H.O. as of Dec 31, 2020 - unchanged

COVID natural Immunity is most likely better than vaccination immunity- literature review by Masterjohn - Oct 2021

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