So, just throwing this out here for fun.

You know how there's an "egg shortage" and they keep saying that there's going to be another pandemic soon?

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7121728/

Isolation and Propagation of Coronaviruses in Embryonated Eggs

The embryonated egg is a complex structure comprised of an embryo and its supporting membranes (chorioallantoic, amniotic, yolk). The developing embryo and its membranes provide the diversity of cell types that are needed for successful replication of a wide variety of different viruses.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4401370/

Influenza Virus Propagation in Embryonated Chicken Eggs

fluenza infection is associated with about 36,000 deaths and more than 200,000 hospitalizations every year in the United States. The continuous emergence of new influenza virus strains due to mutation and re-assortment complicates the control of the virus and necessitates the permanent development of novel drugs and vaccines. The laboratory-based study of influenza requires a reliable and cost-effective method for the propagation of the virus. Here, a comprehensive protocol is provided for influenza A virus propagation in fertile chicken eggs, which consistently yields high titer viral stocks.

Maybe someone's just diverting production and using them all to make a whole lot of fertilized eggs so they can make a whole lot of virus for the next ride on the ferris wheel.