Vaccinated people who were infected by the earlier Omicron subvariants have four times greater protection than vaccinated people who were not infected against the new variants like BA.5, finds a new study.The study indicates that previous .
The study indicates that previous infection in vaccinated people (the so-called hybrid immunity) continues to confer immunity for the variants that are known for their ability to evade the immune response.
For the study, published in the New England Journal of Medicine journal, the team accessed the registry of Covid-19 cases at Portugal's national level.
The study indicates that previous infection in vaccinated people (the so-called hybrid immunity) continues to confer immunity for the variants that are known for their ability to evade the immune response.
Vaccinated people who were infected by the earlier Omicron sub-variants have four times greater protection than vaccinated people who were not infected against the new variants like BA.5, finds a new study