Public perception of COVID-19 vaccines has evolved into a form of "brand shopping," with Pfizer often viewed as the premium option despite similar technology in the Moderna shot. Johnson & Johnson has successfully marketed its Janssen vaccine with the "one and done" slogan, appealing to those wanting to avoid multiple appointments. Financial analysis shows the U.S. government pays significantly different rates per dose: $30 for Moderna, $19.50 for Pfizer, and $10 for Johnson & Johnson.


