Don't Miss Out

Subscribe to OCA's News & Alerts.

WHO Changes Definition of Herd Immunity

In a shocking reversal that’s akin to redefining reality, the World Health Organization has changed their definition of herd immunity. Herd immunity occurs when enough people acquire immunity to an infectious disease such that it can no longer spread widely in the community.

When the number susceptible is low enough to prevent epidemic growth, herd immunity is said to have been reached. Prior to the introduction of vaccines, all herd immunity was achieved via exposure to and recovery from an infectious disease.

Eventually, as vaccination became widespread, the concept of herd immunity evolved to include not only the naturally acquired immunity that comes from prior illness, but also the temporary vaccine-acquired immunity that can occur after vaccination. WHO, however, quietly revised this concept in an Orwellian move that totally removes natural infection from the equation.

Violating Science, WHO Changes the Meaning of Herd Immunity

In June 2020, WHO’s definition of herd immunity, posted on one of their COVID-19 Q&A pages, was in line with the widely accepted concept that has been the standard for infectious diseases for decades. Here’s what it originally said, courtesy of the Internet Archive’s Wayback machine:1

“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.”

It should be noted that “immunity developed through previous infection” is the way it has worked since humans have been alive. Your immune system isn’t designed to get vaccines. It’s designed to work in response to exposure to an infectious agent. Apparently, according to WHO, that’s no longer the case. In October 2020, here’s their updated definition of herd immunity, which is now “a concept used for vaccination”:2

“‘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.”

This perversion of science implies that the only way to achieve herd immunity is via vaccination, which is blatantly untrue. The startling implications for society, however, are that by putting out this false information, they’re attempting to change our perception of what’s true and not true, leaving people believing that they must artificially manipulate their immune systems as the only way to stay safe from infectious disease.

CDC, Others Retain Natural Infection as Part of Herd Immunity

As of this writing, other high-profile medical organizations have not signed on to WHO’s skewed definition of herd immunity. The U.S. Centers for Disease Control and Prevention, for instance, in their Vaccine Glossary of Terms, defines community immunity, also known as herd immunity, as follows:3

“A situation in which a sufficient proportion of a population is immune to an infectious disease (through vaccination and/or prior illness) to make its spread from person to person unlikely. Even individuals not vaccinated (such as newborns and those with chronic illnesses) are offered some protection because the disease has little opportunity to spread within the community.”

The Mayo Clinic, as of January 6, 2020, also stated, “There are two paths to herd immunity for COVID-19 — vaccines and infection,” noting:4

“Herd immunity can also be reached when a sufficient number of people in the population have recovered from a disease and have developed antibodies against future infection. For example, those who survived the 1918 flu (influenza) pandemic were later immune to infection with the H1N1 flu, a subtype of influenza A.”

In a 2020 JAMA Patient Page on herd immunity, Dr. Angel Desai, associated editor of JAMA Network Open, and Dr. Maimuna Majumder with Boston Children’s Hospital, Harvard Medical School, also explain that herd immunity may be achieved via natural infection and recovery:5

“Herd immunity may be achieved either through infection and recovery or by vaccination … Achieving herd immunity through infection relies on enough people being infected with the disease and recovering from it, during which they develop antibodies against future infection.”

Order Ronnie's New Book: The Truth About COVID-19

Get Local

Find News and Action for your state:
$5 Off Your Next Order at and 20% Goes to Organic Consumers Association.