I found the mention of this paper in a clip with Joe Rogan.
http://europepmc.org/article/PMC/4516275
I have not read the paper, but the headlined hypothesis makes sense: If you have a very dangerous pathogen and there is a vaccine which helps the recipient avoid death but allows them to transmit the pathogen then the vaccine will help perpetuate the virulent pathogen.
Historically, without vaccines, highly virulent pathogens died out quickly as they terminated their hosts. A vaccine which reduces serious symptoms and deaths in the recipients will allow a lot of people carrying the deadly pathogen to continue spreading it.
"COVID" jabs turing the ignorant into Typhoid Mary type super spreaders, imo.
http://europepmc.org/article/PMC/4516275