I wish the experts could just come out and say that the three vaccines granted EUA by the FDA are essentially equal in effectiveness. Different study conditions give different results, but these vaccines work the same way. They make our cells manufacture the Covid-19 spike protein, thus tricking the immune system into responding as if it were a real infection. It’s a highly effective approach. The only real difference is one shot vs two, and honestly people should get a prime and boost shot. The one shot protocol is fine in the short term, but people should be boosted within 3 months.