Table 1.
Most common types of COVID-19 vaccines, mode of action, and release time.
| Vaccine name | Manufacturing country | Mode of action | Time of release |
|---|---|---|---|
| Sputnik V | Russia | viral vector-based vaccines | August 2020 |
| AstraZeneca | UK/USA Oxford University/Cambridge | viral vector-based vaccines | released in 2021 |
| The Janssen/Johnson and Johnson vaccine | USA | viral vector-based vaccines | February 2021 |
| Moderna | USA | novel mRNA-based SARS-CoV-2 vaccines | released in 2020 |
| Pfizer-BioNTech | USA | novel mRNA-based SARS-CoV-2 vaccines | December 2020 |
| Sinovac's CoronaVac | China | whole virus technology(inactivated or killed virus) | December 2020 |
| Novavax | USA | Protein sub-unit vaccine | released in 2021 |