Actually, millions of birds in Mexico have been culled because of bird flu since the 1990s. The same can be said of birds in Canada, in Europe, in Africa, and in Asia. These events don't have the newsworthiness of bird culling in the US, so unless it is your job to track influenza outbreaks, you probably haven't heard of them.
Yes, it was my job to track outbreaks. I'm retired now, but I still pay attention.
The reason avian influenza keeps popping up all over the world is because of the migratory patterns of wild birds. Birds from the Eastern and Western hemisphere migrate to the poles during the summer, where they intermingle. This not only spreads influenza among the birds, it gives the influenza virus ample opportunities to mutate and become new strains of viruses. Because of their unique biology, influenza viruses are the most rapidly mutating viruses known.
So, can we eat vaxed chicken? Boneless, skinless free range chicken thighs are the only meat I eat. Looked up organic version months ago, and no store seems to have them.
I’m a serious anti-vaxer and so is my MD who sad no covid vax for me. Very healthy. One presciption drug, No flu shots. Had a cold about ten years ago.
[MEXICO – It authorised emergency vaccinations against the highly pathogenic H5N1 bird flu strain earlier this year.
The country is currently using two vaccines made by Avimex and Boheringher. By mid-February about 170 million vaccine doses had been administered by certified veterinarians.
Mexico, which has 557 million birds in its poultry industry, does not export poultry products. It has been forced to cull 5.9 million birds because of bird flu in the latest outbreak.
Other Central American countries including Guatemala, Honduras and El Salvador are also buying the bird flu vaccines used by Mexico.
Mexico also vaccinated poultry against the H5N2 strain of bird flu in 1994 and the H7N3 strain in 2012.”]
That Bird Flu is spread by migratory and local birds.
Doing look-up every couple of months or so, Canada and Mexico did not have the same nation wide problem that the US was reported to have.
I could not find if the two countries were using the PCR test that I found was the US “standard of use”.