COVID-19 Vaccines in the USA

Pfizer-BioNTech COVID-19 Vaccine - Comirnaty (the trade name used in the EMA)  is a nucleoside-modified RNA formulated in lipid nanoparticles and encodes an optimized SARS-CoV-2 full-length spike protein antigen. 

Moderna COVID-19 Vaccine - The COVID-19 Vaccine Moderna (mRNA-1273) is an mRNA vaccine candidate against the novel coronavirus SARS-CoV-2 encoding for a prefusion stabilized form of the Spike (S) protein selected by Moderna in collaboration with investigators NIAID Vaccine Research Center.

Janssen COVID-19 Vaccine - The Johnson and Johnson Janssen COVID-19 single-shot experimental vaccine leverages Janssen's AdVac and PER.C6® technologies. Janssen’s AdVac® vectors are based on a specific type of adenovirus, which has been genetically modified so that it can no longer replicate in humans and cause disease.