mRNA and other vetinary vaccines: a breakthrough or a problem?

 I am mainly posting this for later reading.

From CoreyDiggs:

6. Is it possible for mRNA vaccines in livestock to contaminate meat, dairy or egg products?

According to a recent Epoch Times report, a 2014 USDA presentation on Vaccination for Contagious Diseases states that food animals receiving vaccines are subject to “mandatory withdrawal periods prior to slaughter for human consumption. Animals may not be sent to market until the withdrawal time has elapsed. During the mandatory withdrawal time vaccinated animals or products from vaccinated animals may not enter the food chain.  The withdrawal time is determined by the country in which the vaccine is licensed and stated in the product license.”  As the Epoch Times report notes, the USDA recognizes that there must be a waiting time between vaccination and slaughter for human consumption due to risks of contaminating the food supply.  The USDA presentation does not, however, acknowledge DNA or RNA-based biologics, but the same standard of waiting times likely applies, as evidenced by Merck’s RNA vaccine for pigs, which states “Do not vaccinate within 21 days before slaughter.”  However, Dr. Peter McCullough notes 

that mRNA technology “is far more durable than we ever could’ve imagined.  It lasts in the human body for months unchanged.”  Therefore, even with standard wait times, Dr. McCullough believes it is conceivable that mRNA technology administered to food animals could contaminate the food supply.

more here.

Aida and colleagues have graphically summarized the genetic technologies in use as of 2021 in veterinary medicine. In the consumer meat category at present, only swine are of concern given the use of plasmid DNA, replication incompetent viral vector, and RNA replicon products. Do these technologies cause noninfectious diseases in the animals? Can any of the genetic material survive denaturing during curing and cooking? How about pork intestines harvested for the production of heparin widely used in human medicine? It is conceivable that genetic incorporation of foreign RNA or DNA into humans and production of antigens for example, porcine endemic diarrhea or influenza A, could have untoward effects including autoimmunity similar to that with the COVID-19 vaccines?

and here about China immunizing mice with mRNA stuff in milk.

Zhang and colleagues have demonstrated that a shortened mRNA code of 675 base pairs could be loaded into phospholipid packets called exosomes derived from milk and then using that same milk, be fed to mice. The mice gastrointestinal tract absorbed the exosomes and the mRNA must have made it into the blood stream and lymphatic tissue because antibodies were produced in fed mice against SARS-CoV-2 Spike protein (receptor binding domain).