J and J is the one that uses the modified virus and it is not the vaccine i recommend people get if they are going to get one. The mrna vaccine used by pfizer and moderna work in the cell through mrna the exact same way the virus does, except the virus uses mrna to induce the cells to make more virus, the vaccine mrna only the portion that makes the spike protein.
One poster, in their complete haste to "prove" the jabs aren't a gene therapy, posted link to a story where a jab manufacturer, using an adenovirus vector, found that their adenoviruses were undergoing recombination during the manufacturing process: despite a, hmm, call it a spec or requirement, that certain portions of those adenoviruses' genetic codes be excised to prevent replication or interacting with the immune system.
The company apparently lied to The Lancet about the phase 3 clinical trials involving that batch, the article said.
Quality control, it was said. But if it can happen by accident, it can be done on purpose /Chicom bioweapons>.