One of the fastest vaccines to be ever developed was for the COVID 19 virus, and along, a-raised a lot of fabricated deception. There are a lot of people around world dying due to COVID 19, mainly because of the fear to take the vaccines. It is very important to understand the working of these vaccines. So without any delay let's first understand how many vaccines are there and how they function to boost immunity. The below is the list of the currently authorised vaccines used for COVID 19 and their vaccine type. To know about the vaccines and types refer to the previous article on Vaccines and their functioning. Comirnaty (mRNA based vaccine) Moderna COVID 19 (mRNA based vaccine) Covishield (Adenovirus vaccine) Sputnik (Recombinant adenovirus vaccine) COVID 19 vaccine Janssen (non-replicating viral vector) CoronaVac (Inactivated vaccine) BBIBP-CorV (Inactivated vaccine) EpiVacCorona (Peptide / Subunit Vaccine) Convidicea (Recombinant vaccine from adenovirus type 5 vector)