The J&J injection for the Wuhanic Plague is a DNA experiment, which is supposed to generate one version of spike protein in your body. Yes, it's different. But not very different.
Types of COVID-19 Vaccines Available
There are four approved or authorized vaccines in the United States.
Pfizer-BioNTech and Moderna COVID-19 vaccines are mRNA vaccines.
Novavax COVID-19 vaccine is a protein subunit vaccine.
Johnson & Johnson’s Janssen (J&J/Janssen) COVID-19 vaccine is a viral vector vaccine and can be given in some situations.