The hard part of making an egg replacement product is coming up with a substitute for the protein in egg whites. Wilson Hui/Flickr hide caption

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Wilson Hui/Flickr

Eggs Go AWOL, And Bakers Scramble For High-Tech Substitutes

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Cartons of eggs are stacked on shelves at Laurenzo's Italian Center, May 21, 2015, in Miami. Joe Raedle/Getty Images hide caption

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For Bakers And Restaurants, Egg Supply Is Getting Ugly

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A gate blocks the entrance of a farm operated by Daybreak Foods, on May 17, 2015 near Eagle Grove, Iowa. The facility was reportedly struck by the current outbreak of bird flu. Secretary of Agriculture Tom Vilsick says biosecurity measures are crucial to containing the spread of the disease, which has only infected birds, not humans. Scott Olson/Getty Images hide caption

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Secretary Of Agriculture: Bird Flu Poses 'No Health Issue' To Humans

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Men in hazardous materials suits load dead poultry to be buried at Rose Acre Farms Inc., just west of Winterset, Iowa, on May 11. John Gaps III/AP hide caption

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John Gaps III/AP

Avian Flu Outbreak Takes Poultry Producers Into Uncharted Territory

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An outbreak of bird flu in India in 2008 prompted authorities to temporarily ban the sale of poultry. Diptendu Dutta/AFP/Getty Images hide caption

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Diptendu Dutta/AFP/Getty Images

Biologists Choose Sides In Safety Debate Over Lab-Made Pathogens

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A cockerel walks on a bridge in a residential area of Beijing. The Chinese are beginning to destroy thousands of birds in an effort to stamp out the presumed source of H7N9 infection. Wang Zhao/AFP/Getty Images hide caption

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Human Cases Of Bird Flu In China Draw Scrutiny

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H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

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Cynthia Goldsmith/CDC

Scientists Debate How To Conduct Bird Flu Research

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H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

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Cynthia Goldsmith/CDC

H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

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Cynthia Goldsmith/CDC