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SESK: Stuff Everyone Should Know · sesk.info/chick-ib-weird-eggs

Infectious bronchitis is a contagious respiratory disease. What can it do to eggs?

Fewer eggs, with thin, soft, wrinkled or misshapen shells.

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  1. Fewer eggs with thin, wrinkled or misshapen shells ✔
  2. Bigger eggs with double yolks
  3. Nothing, it only affects breathing

Why: Along with coughing and sneezing, laying can drop by up to 70 percent. Eggs can return to normal, but it may take up to 8 weeks.

Huh, didn't know that: The virus that causes it is a type of coronavirus that infects chickens.

The dad joke
Why did the egg get sent out of class? It kept telling yolks.
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References

Answer: Fewer eggs with thin, wrinkled or misshapen shells. Along with coughing and sneezing, laying can drop by up to 70 percent. Eggs can return to normal, but it may take up to 8 weeks.

  1. Infectious Bronchitis in Chickens, Merck Veterinary Manual www.merckvetmanual.com/poultry/infectious-bronchitis/infectious-bronchitis-in-chickens
    In layers with infectious bronchitis, egg production can drop by up to 70%, and eggs are often misshapen
    Checked 2026-10-11.

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