Accordingly, vaccinated people had four weeks after the second dose significantly fewer antibodies against the omicron variant than against certain earlier variants in the blood. In order to examine the effect of a vaccine against a certain variant of Sars-CoV-2, researchers usually do so-called neutralization tests. It is checked how many antibodies a vaccinated person has in the blood that can reach the virus variant and thus switch it off. The actual protection of vaccinated persons cannot be determined with this, however, clinical studies with thousands of test persons or evaluations of the ongoing infection process are required.
the Number of antibodies directed against Omikron rose about two weeks after a booster vaccination with Moderna clearly. According to the study, a booster dose could significantly reduce the risk of the disease. However, the team qualifies that it is only about Laboratory tests. In addition, there was a lack of data on how long the reaction of the neutralizing antibodies lasted after the booster vaccination.