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Sunday, May 3, 2026

Fact check: False claim that egg yolk study is linked to higher egg ... - USA TODAY

The claim: Egg yolk antibody study is connected to higher egg prices and chicken farm fires

A Feb. 2 Facebook post (direct link, archived link) shows a screenshot of a 2020 study titled "Chicken Egg Yolk Antibodies (IgYs) block the binding of multiple SARS-CoV-2 spike protein variants to human ACE2."

"Well well well," reads the post's caption. "Now you know why the price skyrocketed and chicken farms are burning down."

Similar posts have accumulated hundreds of interactions on Instagram.

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Our rating: False

There is no evidence the 2020 study referenced in the post has any connection to higher egg prices and chicken farm fires. An avian flu is responsible for higher egg prices. Heating equipment and electrical system malfunctions caused the majority of fires in animal housing facilities – and have for years, according to the Fire Protection Research Foundation.

Study not connected to egg prices and farm fires

The 2020 study has no relevance to higher egg prices or chicken farm fires, according to Dr. Richard Martinello, an infectious disease specialist at Yale University.

Researchers in a lab attempted to find a tool for the prevention and control of the COVID-19 virus. They found that immunoglobulin Y's – antibodies found in egg yolk – showed "significant neutralizing potency" against COVID-19.

The study does not mention egg prices or chicken farm fires.

The reduction of egg...



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