Chicken Egg Yolk Antibodies (IgYs) block the binding of multiple SARS-CoV-2 spike protein variants to human ACE2 ~ February 3, 2023


Editor’s Note: Please observe the authors of this article without exception seeming to be Chinese. I do not doubt the efficacy for this article, yet perhaps another reason prompts the destruction of chickens/eggs. Recent changes made to chicken feed seem to be making the egg yokes less nutritious/healthy, so perhaps “tainted” chickens/eggs have been removed as a protective measure for human health. By this measure, the safety of our food supply has been maintained, leaving us to BE in…

Quantum Joy!


Shuangshi Wei  1 Shengbao Duan  2 Xiaomei Liu  1 Hongmei Wang  1 Shaohua Ding  1 Yezhou Chen  1 Jinsong Xie  1 Jingjing Tian  1 Nong Yu  3 Pingju Ge  4 Xinglin Zhang  4 Xiaohong Chen  4 Yong Li  5 Qinglin Meng  6


Free PMC article


The SARS-CoV-2 virus is still spreading worldwide, and there is an urgent need to effectively prevent and control this pandemic. This study evaluated the potential efficacy of Egg Yolk Antibodies (IgY) as a neutralizing agent against the SARS-CoV-2. We investigated the neutralizing effect of anti-spike-S1 IgYs on the SARS-CoV-2 pseudovirus, as well as its inhibitory effect on the binding of the coronavirus spike protein mutants to human ACE2. Our results show that the anti-Spike-S1 IgYs showed significant neutralizing potency against SARS-CoV-2 pseudovirus, various spike protein mutants, and even SARS-CoV in vitro. It might be a feasible tool for the prevention and control of ongoing COVID-19.

Keywords: Chicken Egg Yolk Antibodies; IgY; Neutralizing agent; SARS-CoV-2; Spike protein variants.

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  1. Zhou P., et al. A pneumonia outbreak associated with a new coronavirus of probable bat origin. Nature. 2020;579:270–273. – PMCPubMed

2 thoughts on “Chicken Egg Yolk Antibodies (IgYs) block the binding of multiple SARS-CoV-2 spike protein variants to human ACE2 ~ February 3, 2023

  1. Intentional destruction of any foods is diabolical. Targeting eggs by manipulating their natural health benefits is not a surprise. And the recent killing of millions of chickens due to bird flu ??? is not a coincidence. 1+1 IS 2!


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