The vaccine contains 30 micrograms of mRNA. This DNA needs an envelope to enter the cell, and this covering is made up of 4 fatty molecules, three of which are synthetic and one is natural, which is cholesterol. The vaccine also contains salts to protect the DNA and its envelope. According to scientists, the allergic reaction that appeared to some people is on fatty molecules, which are often Polyethylenglykol. As in the event of any known sensitivity to this substance, extreme caution should be exercised. Also, people who have previously experienced an allergic shock after taking a vaccine, take extreme caution when taking the vaccine. Caution should be exercised when giving it to those who take blood thinners during injection, for fear of bleeding from the components of the vaccine. mRNA . Lipide (((4-hydroxybutyl)azanediyl)bis (hexan-6,1-diyl)bis(2-hexyldecanoat), 2[(Polyethylenglykol)-2000]-N,N-ditetradecylacetamide, 1,2-Distearoyl-sn- glycero-3-Phosphocholin, und Cholesterin) .Kaliumchlorid .einbasiges Kaliumphosphat .Natriumchlorid .zweibasisches Natriumphosphat-Dihydrat .Saccharose.