This has been a problem for a long time and not just with human health. Back in the '70s an AVMA Journal article detailed Pfizer's research in developing the first 3 year Rabies vaccine for dogs and cats that could be given SQ instead of IM (which hurt a lot more). It was a huge advance for vets and their patients. Millions of doses were given over the next 2 years until an FDA report came out that Pfizer's research was knowingly flawed. It turned out that Pfizer's researchers refused to sign off on the research so Pfizer had 2 VPs ghost write & sign off on the work given to the FDA for approval. I had given close to 15K doses of that vaccine for which Pfizer offered to pay me a measley $5 each and a free vaccine to notify each client, make an appointment and give their replacement vaccine. I sued Pfizer in '78 or '79 and they quickly settled out of court.
I've never trusted Pfizer since.
Indirectly related to all this big pharma crap going on right now is the huge counterfeit drug problem. Did you know that the 2 most counterfeited drugs on the market today, human or animal, are Frontline and Advantage, both used for flea and tick control on dogs and cats? It's coming in from China through channels in Mexico and Canada. The packaging is an exact duplicate and even Merial, the French maker of Frontline, can't tell you which is real and which is fake by looking at the package. If you buy either product from Costco, BJs or online chances are close to 100% you're getting the fake since Merial says they don't sell to them. Just a heads up.