) mRNA vaccine maker Moderna is working on an update that targets the omicron variant and its subvariants. The goal should be to include as many antigens as possible, in Soumya’s opinion. Antigens are the molecular targets of the virus recognized by antibodies.
19164453So far , in mRNA vaccines such as those by Moderna and Pfizer (only the latter was used in Brazil), only one protein on the surface of the virus is produced in human cells with the instructions of the mRNA and presented to the immune system as an antigen. A combination of vaccine with natural immunity, the so-called hybrid immunity, has so far proved to be the best existing type of protection against Covid-19. Every vaccine aims to emulate what happens when the organism is infected by a pathogen, survives it and creates defenses.